CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Opening statistics

This page shows how many games in our database were played from various known openings. The table also shows average draw percentage and white score we observed in our games.

ECOOpeningNumber
of
games
DrawsWhite
score
Commented
PGN
C51Evans gambit, Goering attack10.0%100.0%
D08QGD, Albin counter-gambit, Lasker trap10.0%100.0%
C46Three knights, Winawer defence (Gothic defence)10.0%100.0%
C39KGA, Kieseritsky, Brentano (Campbell) defence10.0%100.0%
C12French, MacCutcheon, Tartakower variation20.0%100.0%
A10English, Jaenisch gambit20.0%100.0%
E23Nimzo-Indian, Spielmann, Staahlberg variation10.0%100.0%
C32KGD, Falkbeer, Keres variation10.0%100.0%
C54Giuoco Piano, Moeller, bayonet attack10.0%100.0%
C44Scotch gambit, Hanneken variation10.0%100.0%
B40Sicilian, Marshall variation10.0%100.0%
A00Amsterdam attack10.0%100.0%
C49Four knights, Svenonius variation10.0%100.0%
C55Two knights, Max Lange attack, Loman defence10.0%100.0%
C57Two knights defence, Fegatello attack, Polerio defence30.0%100.0%
B01Scandinavian, Anderssen counter-attack orthodox attack10.0%100.0%
C23Bishop's opening, Calabrese counter-gambit, Jaenisch variation30.0%100.0%
C52Evans gambit, Waller attack60.0%100.0%
C39KGA, Kieseritsky, Brentano defence10.0%100.0%
C45Scotch, Paulsen attack10.0%100.0%
C51Evans gambit, Fraser attack20.0%100.0%
B13Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation10.0%100.0%
C52Evans gambit, Sanders-Alapin variation20.0%100.0%
A04Reti, Herrstroem gambit20.0%100.0%
B62Sicilian, Richter-Rauzer, Richter attack10.0%100.0%
B01Scandinavian, Anderssen counter-attack, Collijn variation10.0%100.0%
C29Vienna gambit, Wurzburger trap20.0%100.0%
C27Vienna, `Frankenstein-Dracula' variation10.0%100.0%
C33KGA, Carrera (Basman) gambit10.0%100.0%
C80Ruy Lopez, open, Harksen gambit10.0%100.0%
C32KGD, Falkbeer, main line, 7...Bf5616.7%91.7%
C67Ruy Lopez, Berlin defence, Trifunovic variation520.0%90.0%
D43QGD semi-Slav, Hastings variation520.0%90.0%
C00Lengfellner system520.0%90.0%
D18QGD Slav, Dutch, Lasker variation425.0%87.5%
D53QGD, Lasker variation425.0%87.5%
D08QGD, Albin counter-gambit, Balogh variation425.0%87.5%
B01Scandinavian, Kiel variation728.6%85.7%
C06French, Tarrasch, Leningrad variation1717.6%85.3%
B00Reversed Grob (Borg/Basman defence/macho Grob)1631.3%84.4%
C89Ruy Lopez, Marshall, Herman Steiner variation333.3%83.3%
C43Petrov, Urusov gambit633.3%83.3%
C42Petrov, French attack333.3%83.3%
A46Queen's pawn, Torre attack, Wagner gambit333.3%83.3%
A82Dutch, Balogh defence633.3%83.3%
C64Ruy Lopez, classical defence, Charousek variation333.3%83.3%
C30KGD, Norwalde variation147.1%82.1%
C13French, classical, Frankfurt variation837.5%81.3%
C82Ruy Lopez, open, 9.c350.0%80.0%
B40Sicilian, Pin, Koch variation3625.0%79.2%
D66QGD, Orthodox defence, Bd3 line, fianchetto variation742.9%78.6%
A61Benoni, fianchetto variation1414.3%78.6%
A42Modern defence, Averbakh system, Randspringer variation90.0%77.8%
D41QGD, Semi-Tarrasch, San Sebastian variation2437.5%77.1%
C70Ruy Lopez, Alapin's defence deferred1533.3%76.7%
C41Philidor, Hanham, Schlechter variation1723.5%76.5%
E23Nimzo-Indian, Spielmann, San Remo variation650.0%75.0%
C82Ruy Lopez, open, Motzko attack, Nenarokov variation650.0%75.0%
C42Petrov, classical attack, Tarrasch variation250.0%75.0%
C83Ruy Lopez, open, Breslau variation250.0%75.0%
B03Alekhine's defence, Balogh variation825.0%75.0%
B01Scandinavian, Richter variation250.0%75.0%
C51Evans counter-gambit250.0%75.0%
A02Bird's opening, Swiss gambit250.0%75.0%
C37KGA, Salvio gambit250.0%75.0%
A04Reti, Lisitsin gambit deferred1816.7%75.0%
A81Dutch, Leningrad, Basman system450.0%75.0%
B01Scandinavian defence, Gruenfeld variation40.0%75.0%
C41Philidor, Philidor counter-gambit, Zukertort variation650.0%75.0%
C53Giuoco Piano, close variation2030.0%75.0%
C13French, Albin-Alekhine-Chatard attack, Teichmann variation250.0%75.0%
C51Evans gambit450.0%75.0%
A74Benoni, classical, 9...a6, 10.a41942.1%73.7%
C34KGA, Schallop defence1729.4%73.5%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc1526.7%73.3%
C31KGD, Nimzovich counter-gambit1553.3%73.3%
D65QGD, Orthodox defence, Rubinstein attack, main line1154.5%72.7%
C52Evans gambit, compromised defence4221.4%72.6%
A75Benoni, classical with ...a6 and 10...Bg44725.5%72.3%
C58Two knights defence, Paoli variation933.3%72.2%
D48QGD semi-Slav, Meran, Pirc variation955.6%72.2%
B04Alekhine's defence, modern, Keres variation4434.1%71.6%
C70Ruy Lopez, Schliemann defence deferred1926.3%71.1%
C40Gunderam defence6728.4%70.9%
B34Sicilian, accelerated fianchetto, exchange variation1747.1%70.6%
C13French, Albin-Alekhine-Chatard attack, Spielmann variation5742.1%70.2%
C31KGD, Falkbeer, Rubinstein variation520.0%70.0%
B12de Bruycker defence520.0%70.0%
A02Bird, Hobbs gambit560.0%70.0%
C30KGD, Keene's defence560.0%70.0%
C31KGD, Falkbeer, Nimzovich variation560.0%70.0%
D63QGD, Orthodox defence, Pillsbury attack1533.3%70.0%
C67Ruy Lopez, Berlin defence, Winawer attack2832.1%69.6%
C41Philidor, Nimzovich, Rellstab variation2846.4%69.6%
C51Evans gambit, Paulsen variation1827.8%69.4%
B40Sicilian, Pin variation (Sicilian counter-attack)1346.2%69.2%
C83Ruy Lopez, open, Malkin variation862.5%68.8%
C29Vienna gambit, Kaufmann variation837.5%68.8%
C31KGD, Falkbeer, 4.d3862.5%68.8%
A09Reti accepted, Keres variation4032.5%68.8%
C82Ruy Lopez, open, Berlin variation1637.5%68.8%
D51QGD, Manhattan variation837.5%68.8%
C30KGD, Mafia defence837.5%68.8%
C17French, Winawer, advance, Rauzer variation837.5%68.8%
B03Alekhine's defence, four pawns attack, Trifunovic variation5735.1%68.4%
A56Czech Benoni defence26927.9%68.2%
D51QGD1145.5%68.2%
C60Ruy Lopez, Cozio defence, Paulsen variation3327.3%68.2%
C39KGA, Kieseritsky, Neumann defence1163.6%68.2%
A40Beefeater defence3321.2%68.2%
C41Philidor, Hanham variation2540.0%68.0%
A77Benoni, classical, 9...Re8, 10.Nd211825.4%67.8%
A43Old Benoni, Mujannah formation3138.7%67.7%
C20Alapin's opening1729.4%67.6%
D83Gruenfeld, Gruenfeld gambit1729.4%67.6%
C41Philidor, Hanham, Steiner variation2035.0%67.5%
B74Sicilian, dragon, classical, Alekhine variation2347.8%67.4%
B03Alekhine's defence, four pawns attack, 7.Be310735.5%67.3%
C36KGA, Abbazia defence (classical defence, modern defence[!])3537.1%67.1%
C12French, MacCutcheon, Dr. Olland (Dutch) variation4825.0%66.7%
C40QP counter-gambit, Maroczy gambit366.7%66.7%
A56Czech Benoni, King's Indian system3611.1%66.7%
C58Two knights defence, Blackburne variation30.0%66.7%
C41Philidor, Philidor counter-gambit, del Rio attack30.0%66.7%
C44Scotch, Relfsson gambit ('MacLopez')666.7%66.7%
B85Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6366.7%66.7%
E37Nimzo-Indian, classical, San Remo variation30.0%66.7%
C44Ponziani, Fraser defence4837.5%66.7%
C13French, Albin-Alekhine-Chatard attack, Maroczy variation1233.3%66.7%
C58Two knights defence, Kieseritsky variation633.3%66.7%
C45Scotch, Horwitz attack2433.3%66.7%
C41Philidor, Nimzovich, Sokolsky variation666.7%66.7%
E51Nimzo-Indian, 4.e3, Ragozin variation2138.1%66.7%
D33QGD, Tarrasch, Wagner variation922.2%66.7%
E79King's Indian, Four pawns attack, main line60.0%66.7%
B15Caro-Kann, Gurgenidze counter-attack366.7%66.7%
D86Gruenfeld, exchange, Larsen variation30.0%66.7%
C13French, classical, Vistaneckis (Nimzovich) variation90.0%66.7%
C44Konstantinopolsky opening666.7%66.7%
D16QGD Slav accepted, Alapin variation15738.9%66.6%
C92Ruy Lopez, closed, Kholmov variation11930.3%66.4%
A59Benko gambit, main line11641.4%66.4%
D44QGD semi-Slav, anti-Meran, Lilienthal variation15930.8%66.4%
C82Ruy Lopez, open, St. Petersburg variation18440.2%66.3%
C03French, Tarrasch, Guimard variation5625.0%66.1%
A86Dutch with c4 & g38138.3%66.0%
E99King's Indian, orthodox, Aronin-Taimanov, Benko attack5322.6%66.0%
C82Ruy Lopez, open, Italian variation8847.7%65.9%
D25QGA, Flohr variation6330.2%65.9%
E54Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation1968.4%65.8%
A56Benoni defence, Hromodka system37223.9%65.7%
A44Old Benoni defence1643.8%65.6%
B03Alekhine's defence, four pawns attack22531.6%65.6%
C13French, Albin-Alekhine-Chatard attack, Breyer variation6839.7%65.4%
A52Budapest, Alekhine variation1323.1%65.4%
C40QP counter-gambit (elephant gambit)1353.8%65.4%
C37KGA, King's knight's gambit1369.2%65.4%
A76Benoni, classical, 9...Re88837.5%65.3%
A03Bird's opening, Williams gambit2334.8%65.2%
B05Alekhine's defence, modern variation, 4...Bg456332.3%65.2%
B01Scandinavian defence, Lasker variation11332.7%65.0%
B79Sicilian, dragon, Yugoslav attack, 12.h41030.0%65.0%
A99Dutch, Ilyin-Genevsky variation with b38035.0%65.0%
C80Ruy Lopez, open, Riga variation1050.0%65.0%
A25English, closed, Taimanov variation2010.0%65.0%
D51QGD, Capablanca anti-Cambridge Springs variation1070.0%65.0%
C41Philidor, Larsen variation3023.3%65.0%
E36Nimzo-Indian, classical, Botvinnik variation1030.0%65.0%
C96Ruy Lopez, closed, Keres (...Nd7) defence19737.6%65.0%
D67QGD, Orthodox defence, Bd3 line, 11.O-O4736.2%64.9%
B76Sicilian, dragon, Yugoslav attack, Rauser variation88433.3%64.8%
C60Ruy Lopez (Spanish opening)2725.9%64.8%
C00St. George defence9246.7%64.7%
A42Modern defence, Averbakh system, Kotov variation10324.3%64.6%
E91King's Indian, 6.Be255632.9%64.3%
A51Budapest defence declined742.9%64.3%
D31QGD, Alapin variation742.9%64.3%
A63Benoni, fianchetto, 9...Nbd77034.3%64.3%
D95Gruenfeld with e3 & Qb31457.1%64.3%
D97Gruenfeld, Russian, Levenfish variation742.9%64.3%
B27Sicilian, Quinteros variation3537.1%64.3%
C48Four knights, Ranken variation1442.9%64.3%
B33Sicilian, Pelikan, Bird variation22138.0%64.3%
C70Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation12337.4%64.2%
C92Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation28443.0%64.1%
D46QGD semi-Slav, Romih variation16737.1%64.1%
D26QGA, classical, Steinitz variation3246.9%64.1%
A60Benoni defence10725.2%64.0%
C96Ruy Lopez, closed (10...c5)61433.2%64.0%
C05French, Tarrasch, Botvinnik variation4330.2%64.0%
B03Alekhine's defence7931.6%63.9%
D16QGD Slav, Steiner variation20537.1%63.9%
D08QGD, Albin counter-gambit8341.0%63.9%
A97Dutch, Ilyin-Genevsky, Winter variation6541.5%63.8%
B05Alekhine's defence, modern, Flohr variation9436.2%63.8%
A42Pterodactyl defence32036.9%63.8%
B56Sicilian, Venice attack5137.3%63.7%
B06Robatsch defence, three pawns attack13531.1%63.7%
B64Sicilian, Richter-Rauzer, Rauzer attack, Geller variation1136.4%63.6%
C96Ruy Lopez, closed (8...Na5)2254.5%63.6%
C00French, Reversed Philidor formation1136.4%63.6%
A22English, Bellon gambit1136.4%63.6%
E62King's Indian, fianchetto, Simagin variation8135.8%63.6%
C49Four knights, double Ruy Lopez5942.4%63.6%
E40Nimzo-Indian, 4.e3, Taimanov variation6334.9%63.5%
A16English, Anglo-Gruenfeld, Czech defense15633.3%63.5%
B42Sicilian, Kan, Gipslis variation7839.7%63.5%
A89Dutch, Leningrad, main variation with Nc633536.7%63.4%
A40Queen's pawn, English defence16141.0%63.4%
D83Gruenfeld, Gruenfeld gambit, Botvinnik variation1573.3%63.3%
D07QGD, Chigorin defence, Janowski variation7932.9%63.3%
C17French, Winawer, advance, 5.a333931.0%63.3%
C18French, Winawer, advance variation42526.8%63.1%
C89Ruy Lopez, Marshall, main line, 12.d2d420842.3%63.0%
C97Ruy Lopez, closed, Chigorin defence72931.0%63.0%
C88Ruy Lopez, closed, 8.c32737.0%63.0%
D81Gruenfeld, Russian variation30542.0%63.0%
C47Four knights, Scotch, Krause variation3135.5%62.9%
D46QGD semi-Slav, 6.Bd33540.0%62.9%
A92Dutch defence, Alekhine variation3540.0%62.9%
A61Benoni defence45931.6%62.9%
D63QGD, Orthodox defence, Swiss (Henneberger) variation8644.2%62.8%
C99Ruy Lopez, closed, Chigorin, 12...c5d490240.4%62.7%
C19French, Winawer, advance, poisoned pawn, Konstantinopolsky variation52429.2%62.7%
C80Ruy Lopez, open, Bernstein variation81647.2%62.7%
D06QGD, Grau (Sahovic) defence9534.7%62.6%
A67Benoni, Taimanov variation19924.6%62.6%
C55Two knights, Max Lange attack, Steinitz variation1241.7%62.5%
D49QGD semi-Slav, Meran, Rellstab attack1637.5%62.5%
A81Dutch, Leningrad, Karlsbad variation475.0%62.5%
C55Two knights, Max Lange attack, Marshall variation825.0%62.5%
C00French, Alapin variation475.0%62.5%
C67Ruy Lopez, Berlin defence, Rosenthal variation2450.0%62.5%
C43Petrov, modern attack, Bardeleben variation425.0%62.5%
A00Global opening425.0%62.5%
A40Queen's pawn, Charlick (Englund) gambit2045.0%62.5%
A00Ware (Meadow Hay) opening425.0%62.5%
C37KGA, Muzio gambit, Brentano defence425.0%62.5%
C33KGA, bishop's gambit, Lopez-Gianutio counter-gambit425.0%62.5%
C52Evans gambit, compromised defence, Paulsen variation1625.0%62.5%
E89King's Indian, Saemisch, orthodox main line2832.1%62.5%
E37Nimzo-Indian, classical, Noa variation, main line, 7.Qc227247.1%62.5%
C12French, MacCutcheon, Duras variation425.0%62.5%
D40QGD, Semi-Tarrasch, symmetrical variation850.0%62.5%
A00Grob, Romford counter-gambit425.0%62.5%
D08QGD, Albin counter-gambit, Janowski variation425.0%62.5%
C31KGD, Falkbeer, Tartakower variation475.0%62.5%
D87Gruenfeld, exchange, Seville variation7754.5%62.3%
B06Robatsch defence, Two knights variation30033.3%62.3%
B16Caro-Kann, Bronstein-Larsen variation43831.3%62.2%
A44Semi-Benoni (`blockade variation')8631.4%62.2%
C67Ruy Lopez, Berlin defence, Minckwitz variation3748.6%62.2%
A59Benko gambit3743.2%62.2%
E62King's Indian, fianchetto, Larsen system25742.4%62.1%
A96Dutch, classical variation17035.9%62.1%
A58Benko gambit, fianchetto variation14143.3%62.1%
A72Benoni, classical without 9.O-O4641.3%62.0%
B98Sicilian, Najdorf, Browne variation4228.6%61.9%
B27Sicilian, Katalimov variation12646.0%61.9%
C40Latvian counter-gambit7631.6%61.8%
C41Philidor, Nimzovich variation3441.2%61.8%
E99King's Indian, orthodox, Aronin-Taimanov, main line1729.4%61.8%
C12French, MacCutcheon, Bernstein variation1729.4%61.8%
A80Dutch, Manhattan (Alapin, Ulvestad) variation1741.2%61.8%
C33KGA, bishop's gambit, Morphy variation1729.4%61.8%
C10French, Frere (Becker) variation1741.2%61.8%
A52Budapest, Alekhine, Abonyi variation5626.8%61.6%
B42Sicilian, Kan, Swiss cheese variation25135.5%61.6%
D09QGD, Albin counter-gambit, 5.g37841.0%61.5%
C47Four knights, Scotch variation1315.4%61.5%
D34QGD, Tarrasch, Reti variation2661.5%61.5%
B00Owen defence26933.1%61.5%
B04Alekhine's defence, modern, Schmid variation14438.2%61.5%
C70Ruy Lopez, Classical defence deferred8345.8%61.4%
E60Queen's pawn, Mengarini attack3531.4%61.4%
A51Budapest, Fajarowicz variation3525.7%61.4%
C98Ruy Lopez, closed, Chigorin, 12...Nc613631.6%61.4%
C49Four knights, symmetrical, Capablanca variation2259.1%61.4%
B69Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf67532.0%61.3%
A41Old Indian, Tartakower (Wade) variation81934.7%61.3%
D28QGA, classical, 7.Qe26251.6%61.3%
E69King's Indian, fianchetto, classical main line41733.8%61.3%
D20QGA, Linares variation8035.0%61.3%
C19French, Winawer, advance, Smyslov variation14727.2%61.2%
B04Alekhine's defence, modern variation22333.6%61.2%
B00KP, Nimzovich defence41533.3%61.2%
A90Dutch defence92839.1%61.2%
C82Ruy Lopez, open, Dilworth variation15740.8%61.1%
C53Giuoco Piano, LaBourdonnais variation911.1%61.1%
B07Pirc, Holmov system1844.4%61.1%
E98King's Indian, orthodox, Aronin-Taimanov, 9.Ne183926.8%61.1%
B07Pirc, 150 attack22237.4%61.0%
D88Gruenfeld, Spassky variation, main line, 10...cd, 11.cd19142.4%61.0%
B32Sicilian, Flohr variation20532.2%61.0%
D60QGD, Orthodox defence, Rauzer variation3240.6%60.9%
D32QGD, Tarrasch, von Hennig-Schara gambit5541.8%60.9%
A90Dutch defence, Dutch-Indian (Nimzo-Dutch) variation17935.8%60.9%
B60Sicilian, Richter-Rauzer, Larsen variation13030.8%60.8%
B61Sicilian, Richter-Rauzer, Larsen variation, 7.Qd238137.0%60.8%
E90King's Indian, Larsen variation7940.5%60.8%
E94King's Indian, orthodox, 7...Nbd786033.4%60.8%
E76King's Indian, Four pawns attack21036.7%60.7%
C25Vienna game24334.2%60.7%
C19French, Winawer, advance, poisoned pawn variation239233.5%60.7%
E62King's Indian, fianchetto, Kavalek (Bronstein) variation53032.3%60.7%
B04Alekhine's defence, modern, Larsen variation75641.9%60.6%
C67Ruy Lopez, Berlin defence, Cordel variation5236.5%60.6%
B44Sicilian, Szen variation, Dely-Kasparov gambit1957.9%60.5%
E15Queen's Indian, Buerger variation2437.5%60.4%
D75Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc37745.5%60.4%
E38Nimzo-Indian, classical, 4...c554037.8%60.4%
A52Budapest, Rubinstein variation34340.2%60.3%
C30KGD, classical, 4.c32931.0%60.3%
E09Catalan, closed, main line20334.0%60.3%
E68King's Indian, fianchetto, classical variation, 8.e4115638.4%60.3%
B36Sicilian, accelerated fianchetto, Gurgenidze variation24344.0%60.3%
D17QGD Slav, Carlsbad variation46737.5%60.3%
E60King's Indian, Anti-Gruenfeld4434.1%60.2%
B10Caro-Kann, Two knights variation27937.3%60.2%
B10Caro-Kann, anti-Caro-Kann defence50133.3%60.2%
E08Catalan, closed, 7.Qc27939.2%60.1%
B01Scandinavian, Marshall variation52044.4%60.1%
C05French, Tarrasch, closed variation91431.7%60.1%
D72Neo-Gruenfeld, 5.cd, main line16933.7%60.1%
D98Gruenfeld, Russian, Smyslov variation23441.5%60.0%
B29Sicilian, Nimzovich-Rubinstein variation61440.6%60.0%
C80Ruy Lopez, open, Friess attack1020.0%60.0%
C29Vienna gambit, Paulsen attack580.0%60.0%
C81Ruy Lopez, open, Howell attack, Ekstroem variation1040.0%60.0%
E78King's Indian, Four pawns attack, with Be2 and Nf3540.0%60.0%
A66Benoni, pawn storm variation540.0%60.0%
C49Four knights, Janowski variation1540.0%60.0%
D97Gruenfeld, Russian variation with e42532.0%60.0%
C41Philidor, Nimzovich, Klein variation580.0%60.0%
E62King's Indian, fianchetto, lesser Simagin (Spassky) variation25637.9%60.0%
C83Ruy Lopez, open, classical defence16149.1%59.9%
A17English, Queens Indian formation21236.8%59.9%
B09Pirc, Austrian attack, 6.Bd3107639.7%59.9%
B09Pirc, Austrian attack16740.7%59.9%
A18English, Mikenas-Carls, Flohr variation28537.5%59.8%
D52QGD, Cambridge Springs defence, Capablanca variation3636.1%59.7%
C53Giuoco Piano, centre-holding variation3636.1%59.7%
A21English, Smyslov defence3630.6%59.7%
B32Sicilian, Labourdonnais-Loewenthal variation20641.7%59.7%
B82Sicilian, Scheveningen, Tal variation9835.7%59.7%
B07Pirc, Ufimtsev-Pytel variation32538.8%59.7%
E73King's Indian, 5.Be23141.9%59.7%
C80Ruy Lopez, open (Tarrasch) defence5745.6%59.6%
A28English, four knights, Stean variation8342.2%59.6%
C30KGD, 2...Nf62626.9%59.6%
C41Philidor's defence20836.5%59.6%
C61Ruy Lopez, Bird's defence14737.4%59.5%
A13English, Kurajica defence6330.2%59.5%
C44Scotch gambit4233.3%59.5%
C50King's pawn game21036.2%59.5%
B81Sicilian, Scheveningen, Keres attack215934.4%59.5%
E71King's Indian, Makagonov system (5.h3)63734.2%59.5%
C12French, MacCutcheon, Lasker variation, 8...g636436.0%59.5%
E87King's Indian, Saemisch, orthodox, 7.d524327.6%59.5%
C87Ruy Lopez, closed, Averbach variation24341.6%59.5%
C06French, Tarrasch, closed variation, main line98337.7%59.5%
D66QGD, Orthodox defence, Bd3 line22245.9%59.5%
C04French, Tarrasch, Guimard main line30729.0%59.4%
E94King's Indian, orthodox, Donner variation15438.3%59.4%
A93Dutch, stonewall, Botwinnik variation8529.4%59.4%
A12English, Bled variation1643.8%59.4%
C55Two knights, Max Lange attack1631.3%59.4%
B08Pirc, classical, h3 system37238.4%59.3%
D18QGD Slav, Dutch variation24939.8%59.2%
A61Benoni, Nimzovich (knight's tour) variation34228.4%59.2%
B00St. George (Baker) defence3839.5%59.2%
A43Old Benoni defence128835.3%59.2%
A70Benoni, classical with e4 and Nf353339.2%59.2%
C42Petrov, classical attack, close variation13146.6%59.2%
C65Ruy Lopez, Berlin defence, 4.O-O15341.2%59.2%
D99Gruenfeld defence, Smyslov, main line15939.0%59.1%
C12French, MacCutcheon, Lasker variation20327.6%59.1%
A84Dutch defence, Rubinstein variation25333.6%59.1%
E64King's Indian, fianchetto, Yugoslav system8836.4%59.1%
E10Dzindzikhashvili defence5549.1%59.1%
C45Scotch, Romanishin variation5545.5%59.1%
C30KGD, classical variation4427.3%59.1%
A40Queen's pawn, Lundin (Kevitz-Mikenas) defence14930.9%59.1%
D15QGD Slav, Schlechter variation27142.8%59.0%
C70Ruy Lopez, Caro variation8341.0%59.0%
E96King's Indian, orthodox, 7...Nbd7, main line3941.0%59.0%
A56Benoni defence55933.8%58.9%
A58Benko gambit accepted63233.1%58.9%
D06QGD, Marshall defence11242.9%58.9%
A17English, Queens Indian, Romanishin variation5628.6%58.9%
E62King's Indian, fianchetto, Uhlmann (Szabo) variation24732.0%58.9%
C30King's gambit7338.4%58.9%
D97Gruenfeld, Russian, Byrne (Simagin) variation11838.1%58.9%
D11QGD Slav, Breyer variation10741.1%58.9%
C42Petrov, classical attack, Mason variation11343.4%58.8%
C72Ruy Lopez, modern Steinitz defence, 5.O-O35644.1%58.8%
D32QGD, Tarrasch defence, 4.cd ed1735.3%58.8%
A04Reti v Dutch91334.6%58.8%
E16Queen's Indian, Yates variation30936.6%58.7%
E02Catalan, open, 5.Qa413246.2%58.7%
E75King's Indian, Averbakh, main line4626.1%58.7%
E70King's Indian, 4.e483533.3%58.7%
E19Queen's Indian, old main line, 9.Qxc3128745.5%58.7%
A79Benoni, classical, 11.f35228.8%58.7%
B12Caro-Kann, 3.Nd213942.4%58.6%
A02Bird, From gambit, Lasker variation2955.2%58.6%
C64Ruy Lopez, Cordel gambit5841.4%58.6%
D25QGA, Smyslov variation8752.9%58.6%
D16QGD Slav, Smyslov variation6432.8%58.6%
A95Dutch, stonewall with Nc320529.3%58.5%
B09Pirc, Austrian attack, dragon formation74438.8%58.5%
B00KP, Nimzovich defence, Bogolyubov variation8830.7%58.5%
E17Queen's Indian, old main line, 6.O-O76341.8%58.5%
E92King's Indian, Gligoric-Taimanov system138733.5%58.5%
B06Robatsch defence57736.6%58.5%
A42Modern defence, Averbakh system35432.8%58.5%
E97King's Indian, orthodox, Aronin-Taimanov, bayonet attack121535.4%58.4%
E82King's Indian, Saemisch, double fianchetto variation8931.5%58.4%
B06Robatsch defence, Two knights, Suttles variation97538.3%58.4%
D52QGD12540.0%58.4%
B23Sicilian, chameleon variation52435.1%58.4%
C41Philidor, exchange variation66736.7%58.4%
D02Queen's pawn game, Chigorin variation37140.7%58.4%
B03Alekhine's defence, exchange variation56339.3%58.3%
C14French, classical, Stahlberg variation650.0%58.3%
C31KGD, Falkbeer, 3...e4683.3%58.3%
A43Old Benoni, Franco-Benoni defence9036.7%58.3%
C44Ponziani, Reti variation1233.3%58.3%
C17French, Winawer, advance variation5442.6%58.3%
B53Sicilian, Chekhover, Zaitsev variation4221.4%58.3%
C35KGA, Cunningham, Euwe defence1827.8%58.3%
C70Ruy Lopez, fianchetto defence deferred2466.7%58.3%
D94Gruenfeld, Flohr defence1850.0%58.3%
D33QGD, Tarrasch, Folkestone (Swedish) variation4254.8%58.3%
A78Benoni, classical with ...Re8 and ...Na63638.9%58.3%
C51Evans gambit declined1816.7%58.3%
B06Robatsch defence, Gurgenidze variation4837.5%58.3%
A47Queen's Indian, Marienbad system, Berg variation1250.0%58.3%
B03Alekhine's defence, exchange, Karpov variation650.0%58.3%
C67Ruy Lopez, Berlin defence, Zukertort variation1250.0%58.3%
B09Pirc, Austrian attack, 6.Be326532.1%58.3%
C42Petrov, classical attack, Jaenisch variation161246.0%58.3%
C93Ruy Lopez, closed, Smyslov defence15139.7%58.3%
E33Nimzo-Indian, classical, Milner-Barry (Zurich) variation26038.8%58.3%
D44QGD semi-Slav, anti-Meran gambit75035.2%58.3%
B49Sicilian, Taimanov variation58844.7%58.2%
C43Petrov, modern attack, main line19446.4%58.2%
C10French, Paulsen variation57133.5%58.2%
D17QGD Slav, Krause attack65039.2%58.2%
C18French, Winawer, classical variation26832.1%58.2%
A55Old Indian, main line39638.1%58.2%
E11Bogo-Indian defence, Nimzovich variation134838.1%58.2%
B40Sicilian, Anderssen variation69940.8%58.2%
B62Sicilian, Richter-Rauzer, 6...e64337.2%58.1%
B68Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be79931.3%58.1%
C21Centre game14343.4%58.0%
C82Ruy Lopez, open, Motzko attack5644.6%58.0%
E15Queen's Indian, Rubinstein variation11235.7%58.0%
A32English, symmetrical variation32442.0%58.0%
A50Kevitz-Trajkovich defence29338.2%58.0%
B36Sicilian, accelerated fianchetto, Maroczy bind87945.1%58.0%
B01Scandinavian, Pytel-Wade variation250744.4%58.0%
B39Sicilian, accelerated fianchetto, Breyer variation59340.8%58.0%
B60Sicilian, Richter-Rauzer, Bondarevsky variation2552.0%58.0%
B42Sicilian, Kan, 5.Bd3164436.9%58.0%
D41QGD, Semi-Tarrasch, 5.cd58247.6%58.0%
A40Modern defence79537.2%58.0%
A92Dutch defence4452.3%58.0%
D68QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)4456.8%58.0%
A16English, Anglo-Gruenfeld defense, Korchnoi variation8836.4%58.0%
B03Alekhine's defence, four pawns attack, fianchetto variation10731.8%57.9%
D97Gruenfeld, Russian, Prins variation42942.7%57.9%
D97Gruenfeld, Russian, Szabo (Boleslavsky) variation18343.7%57.9%
C91Ruy Lopez, closed, 9.d4118838.7%57.9%
E88King's Indian, Saemisch, orthodox, 7.d5 c629732.3%57.9%
A12English, Torre defensive system3842.1%57.9%
D63QGD, Orthodox defence7644.7%57.9%
B01Scandinavian defence78040.9%57.9%
E60King's Indian, 3.Nf3252339.3%57.9%
D25QGA, Janowsky-Larsen variation33139.0%57.9%
C14French, classical, Steinitz variation65735.0%57.8%
D94Gruenfeld, 5.e339644.9%57.8%
D15QGD Slav, Suechting variation12832.8%57.8%
E70King's Indian, Kramer system31429.6%57.8%
B98Sicilian, Najdorf variation32730.0%57.8%
B60Sicilian, Richter-Rauzer57235.1%57.8%
B58Sicilian, Boleslavsky, Louma variation4535.6%57.8%
E80King's Indian, Saemisch variation29633.8%57.8%
E77King's Indian, Four pawns attack10332.0%57.8%
C66Ruy Lopez, closed Berlin defence, Wolf variation5856.9%57.8%
B04Alekhine's defence, modern, fianchetto variation61934.4%57.8%
B27Sicilian, Hungarian variation321941.0%57.7%
B08Pirc, classical (two knights) system46737.0%57.7%
C42Petrov three knights game22837.3%57.7%
D63QGD, Orthodox defence, 7.Rc120935.9%57.7%
C48Four knights, Spanish variation20952.2%57.7%
A54Old Indian, Ukrainian variation, 4.Nf318336.6%57.7%
C16French, Winawer, advance variation68134.5%57.6%
E46Nimzo-Indian, 4.e3 O-O5930.5%57.6%
D55QGD, 6.Nf311833.9%57.6%
C44Ponziani counter-gambit10542.9%57.6%
C65Ruy Lopez, Berlin defence, Beverwijk variation46635.8%57.6%
A18English, Mikenas-Carls variation9245.7%57.6%
E45Nimzo-Indian, 4.e3, Bronstein (Byrne) variation15851.9%57.6%
B52Sicilian, Canal-Sokolsky attack, Bronstein gambit19139.8%57.6%
B41Sicilian, Kan, Maroczy bind (Reti variation)41536.1%57.6%
C66Ruy Lopez, Berlin defence, hedgehog variation9952.5%57.6%
B02Alekhine's defence, Maroczy variation8636.0%57.6%
B83Sicilian, modern Scheveningen, main line with Nb38636.0%57.6%
C49Four knights, Nimzovich (Paulsen) variation5358.5%57.5%
D19QGD Slav, Dutch variation126038.7%57.5%
D19QGD Slav, Dutch variation, main line18640.9%57.5%
D34QGD, Tarrasch, Prague variation, 9.Bg553247.4%57.5%
B63Sicilian, Richter-Rauzer, Rauzer attack13336.8%57.5%
C96Ruy Lopez, closed, Borisenko defence4040.0%57.5%
C95Ruy Lopez, closed, Breyer, Simagin variation2035.0%57.5%
B73Sicilian, dragon, classical, Richter variation10043.0%57.5%
C44Inverted Hungarian2045.0%57.5%
A92Dutch, stonewall variation6048.3%57.5%
A39English, symmetrical, main line with d440741.8%57.5%
C11French, Steinitz, Boleslavsky variation315935.1%57.5%
D21QGA, 3.Nf322138.9%57.5%
D68QGD, Orthodox defence, classical variation6746.3%57.5%
C19French, Winawer, advance, positional main line99430.4%57.4%
B38Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3105744.3%57.4%
C12French, MacCutcheon, Janowski variation12836.7%57.4%
B12Caro-Kann, Edinburgh variation2740.7%57.4%
B07Pirc, bayonet (Mariotti) attack2755.6%57.4%
D17QGD Slav, Wiesbaden variation59642.3%57.4%
B00King's pawn opening119936.9%57.4%
E40Nimzo-Indian, 4.e312227.9%57.4%
C00French defence47633.6%57.4%
D06QGD, symmetrical (Austrian) defence3450.0%57.4%
D52QGD, Cambridge Springs defence, Yugoslav variation35439.0%57.3%
A94Dutch, stonewall with Ba34151.2%57.3%
B33Sicilian, Pelikan, Chelyabinsk variation201035.7%57.3%
C10French, Fort Knox variation58240.4%57.3%
A73Benoni, classical, 9.O-O4827.1%57.3%
B82Sicilian, Scheveningen, 6.f443932.1%57.3%
C63Ruy Lopez, Schliemann defence26842.9%57.3%
C63Ruy Lopez, Schliemann defence, Berger variation33740.9%57.3%
B15Caro-Kann, Gurgenidze system28939.1%57.3%
B07Pirc, Byrne variation31732.5%57.3%
D07QGD, Chigorin defence66235.3%57.3%
E63King's Indian, fianchetto, Panno variation205837.3%57.2%
A57Benko gambit half accepted76139.8%57.2%
C44Scotch, Goering gambit18044.4%57.2%
A88Dutch, Leningrad, main variation with c678538.5%57.2%
B75Sicilian, dragon, Yugoslav attack23730.0%57.2%
C00French, Wing gambit2850.0%57.1%
E10Blumenfeld counter-gambit, Spielmann variation6338.1%57.1%
D94Gruenfeld, Smyslov defence15446.8%57.1%
D08QGD, Albin counter-gambit, Alapin variation757.1%57.1%
E08Catalan, closed, Spassky gambit728.6%57.1%
C12French, MacCutcheon, Grigoriev variation2138.1%57.1%
C11French, Swiss variation4247.6%57.1%
C94Ruy Lopez, closed, Breyer defence4233.3%57.1%
E26Nimzo-Indian, Saemisch, O'Kelly variation2128.6%57.1%
C14French, classical, Tarrasch variation70.0%57.1%
B21Sicilian, Andreaschek gambit1442.9%57.1%
D76Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb649744.3%57.1%
C25Vienna, Pierce gambit757.1%57.1%
C42Petrov, classical attack, Chigorin variation54941.0%57.1%
A50Queen's Indian accelerated14146.1%57.1%
D26QGA, classical variation, 6.O-O14146.1%57.1%
D55QGD, Neo-orthodox variation, 7.Bh412744.9%57.1%
A14English, Symmetrical, Keres defence50247.2%57.1%
B09Pirc, Austrian attack, 6.e58543.5%57.1%
B01Scandinavian (centre counter) defence239241.7%57.0%
C42Petrov, classical attack, Marshall variation91643.1%57.0%
A20English, Nimzovich variation6439.1%57.0%
E60King's Indian defence54834.9%57.0%
D92Gruenfeld, 5.Bf465044.8%57.0%
C74Ruy Lopez, modern Steinitz defence5038.0%57.0%
B07Robatsch defence, Geller's system56537.2%57.0%
D46QGD semi-Slav, Bogolyubov variation15843.0%57.0%
B71Sicilian, dragon, Levenfish variation3630.6%56.9%
C25Vienna, Paulsen variation7233.3%56.9%
C51Evans gambit, 5...Be73636.1%56.9%
B08Pirc, classical system, 5.Be2212738.6%56.9%
C75Ruy Lopez, modern Steinitz defence, Rubinstein variation6536.9%56.9%
C03French, Tarrasch185844.8%56.9%
A81Dutch defence292738.4%56.9%
C09French, Tarrasch, open variation, main line101748.9%56.9%
A05Reti, King's Indian attack, Reti-Smyslov variation5139.2%56.9%
D20QGA, 3.e4260340.0%56.9%
E90King's Indian, 5.Nf377433.3%56.8%
E66King's Indian, fianchetto, Yugoslav Panno30133.9%56.8%
E10Blumenfeld counter-gambit, Dus-Chotimursky variation15532.3%56.8%
B45Sicilian, Taimanov variation175838.0%56.8%
D45QGD semi-Slav, 5.e339240.6%56.8%
C90Ruy Lopez, closed, Lutikov variation3748.6%56.8%
B02Alekhine's defence, Scandinavian variation14136.9%56.7%
D24QGA, Bogolyubov variation14949.0%56.7%
B07Pirc defence146137.7%56.7%
D42QGD, Semi-Tarrasch, 7.Bd324642.7%56.7%
A13English, Neo-Catalan accepted104545.6%56.7%
B19Caro-Kann, classical, Spassky variation260239.5%56.7%
C02French, advance, Wade variation32239.4%56.7%
B32Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation108639.7%56.7%
D70Neo-Gruenfeld defence18037.8%56.7%
E18Queen's Indian, old main line, 7.Nc3150643.6%56.6%
B06Robatsch (modern) defence495136.3%56.6%
A40Queen's pawn, Keres defence152744.0%56.6%
E83King's Indian, Saemisch, Panno formation17542.3%56.6%
C42Petrov, classical attack70047.4%56.6%
C19French, Winawer, advance, 6...Ne725934.4%56.6%
A49King's Indian, fianchetto without c497140.8%56.5%
D35QGD, exchange variation35242.6%56.5%
A43Old Benoni, Schmid's system2317.4%56.5%
C77Ruy Lopez, Morphy defence19239.1%56.5%
D22QGA, Alekhine defence20040.0%56.5%
D85Gruenfeld, exchange variation246847.6%56.5%
A53Old Indian, Janowski variation10831.5%56.5%
E72King's Indian with e4 & g35435.2%56.5%
D28QGA, classical, 7...b519351.8%56.5%
B43Sicilian, Kan, 5.Nc3257538.8%56.5%
C43Petrov, modern (Steinitz) attack3148.4%56.5%
B96Sicilian, Najdorf, Polugayevsky, Simagin variation3122.6%56.5%
C69Ruy Lopez, exchange, Gligoric variation62941.0%56.4%
C92Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)183838.6%56.4%
C95Ruy Lopez, closed, Breyer, Borisenko variation70339.7%56.4%
E15Queen's Indian, Nimzovich variation (exaggerated fianchetto)1350540.3%56.4%
B13Caro-Kann, Panov-Botvinnik, normal variation8650.0%56.4%
E00Queen's pawn game37642.0%56.4%
C66Ruy Lopez, closed Berlin defence, Showalter variation5547.3%56.4%
C64Ruy Lopez, classical defence, Benelux variation 37838.6%56.3%
A57Benko gambit59336.8%56.3%
B12Caro-Kann, advance variation918838.1%56.3%
E49Nimzo-Indian, 4.e3, Botvinnik system17446.0%56.3%
D64QGD, Orthodox defence, Rubinstein attack (with Rc1)9545.3%56.3%
E16Queen's Indian, Capablanca variation31740.7%56.3%
A13English, Romanishin gambit24641.1%56.3%
D48QGD semi-Slav, Meran, Reynolds' variation73340.2%56.3%
E60King's Indian, 3.g3138341.9%56.3%
C86Ruy Lopez, Worrall attack2454.2%56.3%
A58Benko gambit, Nd2 variation837.5%56.3%
C41Philidor, Philidor counter-gambit837.5%56.3%
C34KGA, Bonsch-Osmolovsky variation2437.5%56.3%
B74Sicilian, dragon, classical, Spielmann variation837.5%56.3%
C58Two knights defence16036.3%56.3%
D15QGD Slav, Slav gambit1625.0%56.3%
B37Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg712047.5%56.3%
D40QGD, Semi-Tarrasch defence, Pillsbury variation2437.5%56.3%
E72King's Indian, Pomar system812.5%56.3%
A41Modern defence6434.4%56.3%
B00Lemming defence837.5%56.3%
B32Sicilian defence73838.5%56.2%
D34QGD, Tarrasch, Prague variation, Normal position63447.5%56.2%
C41Philidor, Improved Hanham variation89139.5%56.2%
A62Benoni, fianchetto variation66935.0%56.2%
E97King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)385732.9%56.2%
A36English, symmetrical variation10636.8%56.1%
C77Ruy Lopez, four knights (Tarrasch) variation14745.6%56.1%
A54Old Indian, Ukrainian variation8251.2%56.1%
B57Sicilian, Sozin, not Scheveningen21441.1%56.1%
B30Sicilian, Nimzovich-Rossolimo attack (without ...d6)392837.7%56.1%
D30QGD, Capablanca variation3333.3%56.1%
C01French, exchange, Svenonius variation3339.4%56.1%
E16Queen's Indian, Riumin variation19840.4%56.1%
A86Dutch, Leningrad variation13234.8%56.1%
D52QGD, Cambridge Springs defence, Bogoljubow variation38946.8%56.0%
D74Neo-Gruenfeld, 6.cd Nxd5, 7.O-O19944.7%56.0%
E74King's Indian, Averbakh, 6...c523334.8%56.0%
C55Two knights defence (Modern bishop's opening)118838.6%56.0%
A65Benoni, 6.e429325.9%56.0%
C90Ruy Lopez, closed, Suetin variation6737.3%56.0%
A53Old Indian defence85639.0%56.0%
D71Neo-Gruenfeld, 5.cd27746.2%56.0%
D11QGD Slav, 3.Nf3200540.1%55.9%
B31Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)250941.2%55.9%
D34QGD, Tarrasch, Prague variation, 7...Be716943.2%55.9%
E11Bogo-Indian defence, Gruenfeld variation178540.2%55.9%
B48Sicilian, Taimanov variation297937.1%55.9%
E56Nimzo-Indian, 4.e3, main line with 7...Nc630552.8%55.9%
D85Gruenfeld, modern exchange variation299346.2%55.9%
B65Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd451140.5%55.9%
E15Queen's Indian, 4.g3194446.6%55.9%
B77Sicilian, dragon, Yugoslav attack, 9...Bd719742.6%55.8%
C02French, advance variation107232.7%55.8%
E70King's Indian, accelerated Averbakh system10334.0%55.8%
B63Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7107337.1%55.8%
C64Ruy Lopez, classical defence, 4.c323240.9%55.8%
C29Vienna gambit, Breyer variation8630.2%55.8%
A40Queen's pawn, Franco-Indian (Keres) defence85237.9%55.8%
D96Gruenfeld, Russian variation19838.9%55.8%
B54Sicilian, Prins (Moscow) variation37236.8%55.8%
E73King's Indian, Semi-Averbakh system2642.3%55.8%
E95King's Indian, orthodox, 7...Nbd7, 8.Re131235.3%55.8%
C65Ruy Lopez, Berlin defence, Kaufmann variation2642.3%55.8%
E54Nimzo-Indian, 4.e3, Gligoric system with 7...dc116448.6%55.8%
B51Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack144539.0%55.7%
A31English, symmetrical, Benoni formation83640.4%55.7%
C15French, Winawer (Nimzovich) variation66241.1%55.7%
B20Sicilian, wing gambit, Marshall variation6129.5%55.7%
A36English, symmetrical, Botvinnik system reversed6136.1%55.7%
D62QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)13150.4%55.7%
B11Caro-Kann, Two knights, 3...Bg472639.3%55.7%
C45Scotch, Meitner variation3554.3%55.7%
D30Queen's gambit declined549645.3%55.7%
D20Queen's gambit accepted84745.9%55.7%
D13QGD Slav, exchange variation66245.8%55.7%
A30English, symmetrical, hedgehog system252746.7%55.7%
E10Queen's pawn game379145.4%55.6%
B67Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7263233.4%55.6%
E61King's Indian defence, 3.Nc370937.7%55.6%
B52Sicilian, Canal-Sokolsky attack, Sokolsky variation74543.6%55.6%
D27QGA, classical, Rubinstein variation141147.6%55.6%
A68Benoni, four pawns attack7135.2%55.6%
D60QGD, Orthodox defence8932.6%55.6%
B33Sicilian, Pelikan (Lasker/Sveshnikov) variation90135.1%55.6%
C23Bishop's opening, Philidor variation944.4%55.6%
B72Sicilian, dragon, classical, Nottingham variation1844.4%55.6%
B01Scandinavian, Icelandic gambit5448.1%55.6%
C14French, classical, Rubinstein variation2737.0%55.6%
B74Sicilian, dragon, classical, Reti-Tartakower variation8144.4%55.6%
B02Alekhine's defence, Steiner variation944.4%55.6%
E91King's Indian, Kazakh variation28836.8%55.6%
D83Gruenfeld, Gruenfeld gambit, Capablanca variation18046.7%55.6%
D94Gruenfeld with e3 Bd31844.4%55.6%
B14Caro-Kann, Panov-Botvinnik attack, 5...e6170346.3%55.5%
A84Dutch defence50839.4%55.5%
E29Nimzo-Indian, Saemisch, main line7339.7%55.5%
A38English, symmetrical variation50245.2%55.5%
E33Nimzo-Indian, classical, 4...Nc66451.6%55.5%
B85Sicilian, Scheveningen, classical main line34046.8%55.4%
E05Catalan, open, classical line9252.2%55.4%
B78Sicilian, dragon, Yugoslav attack, 10.O-O-O29628.4%55.4%
C10French, Rubinstein variation203949.1%55.4%
C71Ruy Lopez, modern Steinitz defence, Duras (Keres) variation10242.2%55.4%
D11QGD Slav, 4.e3366842.3%55.4%
D86Gruenfeld, exchange, Simagin's lesser variation2832.1%55.4%
C21Danish gambit, Soerensen defence2860.7%55.4%
C46Three knights, Steinitz variation2839.3%55.4%
A50Queen's pawn game53337.5%55.3%
D73Neo-Gruenfeld, 5.Nf375851.3%55.3%
E55Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation176947.7%55.3%
D35QGD, Harrwitz attack18851.1%55.3%
C44Scotch gambit, Benima defence4734.0%55.3%
B06Robatsch defence, Pseudo-Austrian attack44234.2%55.3%
D10QGD Slav defence, exchange variation137544.6%55.3%
B15Caro-Kann, Forgacs variation20841.3%55.3%
C75Ruy Lopez, modern Steinitz defence14241.5%55.3%
E67King's Indian, fianchetto, classical variation46439.9%55.3%
C49Four knights, symmetrical variation18042.8%55.3%
A40Queen's pawn193837.0%55.3%
C57Two knights defence, Lolli attack1936.8%55.3%
A52Budapest, Adler variation14347.6%55.2%
D31QGD, 3.Nc370641.9%55.2%
C71Ruy Lopez, modern Steinitz defence10541.9%55.2%
D86Gruenfeld, exchange, classical variation97545.6%55.2%
D52QGD, Cambridge Springs defence, Rubinstein variation15339.9%55.2%
B54Sicilian62337.9%55.2%
A28English, four knights, Capablanca variation40337.5%55.2%
D37QGD, classical variation (5.Bf4)385844.9%55.2%
B28Sicilian, O'Kelly variation28038.9%55.2%
E44Nimzo-Indian, Fischer variation, 5.Ne230935.9%55.2%
E00Catalan opening291642.5%55.2%
D27QGA, classical, 6...a6368050.4%55.1%
A25English, closed system (without ...d6)11728.2%55.1%
A34English, symmetrical, three knights system107341.5%55.1%
A15English, 1...Nf6 (Anglo-Indian defense)103639.6%55.1%
E17Queen's Indian, Euwe variation5952.5%55.1%
B15Caro-Kann, Tartakower (Nimzovich) variation29541.0%55.1%
D31QGD, semi-Slav85638.9%55.1%
E11Bogo-Indian defence134939.4%55.1%
C78Ruy Lopez, Archangelsk (counterthrust) variation147942.2%55.0%
E39Nimzo-Indian, classical, Pirc variation87638.4%55.0%
D90Gruenfeld, Flohr variation22936.7%55.0%
E90King's Indian, Zinnowitz variation3050.0%55.0%
A52Budapest defence2050.0%55.0%
C51Evans gambit, Morphy attack2040.0%55.0%
C77Ruy Lopez, Morphy defence, Duras variation4040.0%55.0%
E10Blumenfeld counter-gambit29042.4%55.0%
B02Alekhine's defence52035.8%55.0%
C45Scotch, Steinitz variation4035.0%55.0%
A45Queen's pawn, Bronstein gambit1030.0%55.0%
A10English opening238437.6%55.0%
B46Sicilian, Taimanov variation297638.3%55.0%
C42Petrov, Nimzovich attack106045.6%55.0%
E81King's Indian, Saemisch, 5...O-O191434.0%54.9%
D10QGD Slav defence, Alekhine variation23341.2%54.9%
A16English, Anglo-Gruenfeld, Smyslov defense15232.2%54.9%
C11French, Steinitz, Gledhill attack11233.0%54.9%
D05Colle system16348.5%54.9%
C15French, Winawer, Alekhine (Maroczy) gambit15336.6%54.9%
A46Queen's pawn game262540.5%54.9%
B02Alekhine's defence, Two pawns' (Lasker's) attack26644.4%54.9%
A90Dutch-Indian, Alekhine variation4136.6%54.9%
D47QGD semi-Slav, Meran variation121449.8%54.9%
B41Sicilian, Kan variation19640.3%54.8%
C22Centre game, Berger variation35237.5%54.8%
D40QGD, Semi-Tarrasch defence41542.2%54.8%
D30QGD Slav27045.9%54.8%
C16French, Winawer, Petrosian variation18731.6%54.8%
C62Ruy Lopez, old Steinitz defence24037.1%54.8%
D15QGD Slav, 4.Nc3349439.8%54.8%
E10Doery defence2142.9%54.8%
C89Ruy Lopez, Marshall counter-attack, 11...c616846.4%54.8%
B31Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation2152.4%54.8%
B24Sicilian, closed, Smyslov variation2133.3%54.8%
C65Ruy Lopez, Berlin defence, Nyholm attack6355.6%54.8%
D35QGD, exchange, positional line, 5...c671541.5%54.8%
E53Nimzo-Indian, 4.e3, main line with ...c534839.9%54.7%
D15QGD Slav, 5.e3 (Alekhine variation)14829.7%54.7%
D80Gruenfeld defence66748.0%54.7%
C66Ruy Lopez, Berlin defence, 4.O-O, d68550.6%54.7%
D90Gruenfeld, Three knights variation45747.3%54.7%
E73King's Indian, Averbakh system85332.5%54.7%
B88Sicilian, Sozin, Leonhardt variation49140.9%54.7%
C02French, advance, Paulsen attack168733.5%54.7%
C86Ruy Lopez, Worrall attack, sharp line20438.7%54.7%
C26Vienna, Falkbeer variation4344.2%54.7%
C83Ruy Lopez, open, 9...Be7, 10.Re14334.9%54.7%
C89Ruy Lopez, Marshall counter-attack48553.6%54.6%
B18Caro-Kann, classical, 6.h448540.8%54.6%
E26Nimzo-Indian, Saemisch variation5446.3%54.6%
C73Ruy Lopez, modern Steinitz defence, Alapin variation6538.5%54.6%
A85Dutch with c4 & Nc357535.5%54.6%
C79Ruy Lopez, Steinitz defence deferred (Russian defence)21738.2%54.6%
E62King's Indian, fianchetto with ...Nc621735.5%54.6%
D78Neo-Gruenfeld, 6.O-O c671742.0%54.6%
A71Benoni, classical, 8.Bg58728.7%54.6%
B13Caro-Kann, Panov-Botvinnik, Gunderam attack1118.2%54.5%
C20King's pawn game2236.4%54.5%
D45QGD semi-Slav, stonewall defence1154.5%54.5%
C79Ruy Lopez, Steinitz defence deferred, Lipnitsky variation1172.7%54.5%
A30English, symmetrical, hedgehog, flexible formation17643.2%54.5%
D98Gruenfeld, Russian, Keres variation1136.4%54.5%
A97Dutch, Ilyin-Genevsky variation2218.2%54.5%
C40Latvian, Fraser defence1118.2%54.5%
D94Gruenfeld, Opovcensky variation13240.9%54.5%
C08French, Tarrasch, open, 4.ed ed121150.3%54.5%
D47QGD semi-Slav, neo-Meran (Lundin variation)27648.2%54.5%
D26QGA, 4...e624345.7%54.5%
B30Sicilian defence233240.8%54.5%
A21English opening130633.1%54.5%
C23Bishop's opening15536.8%54.5%
B98Sicilian, Najdorf, 7...Be712233.6%54.5%
A20English opening507138.1%54.5%
A87Dutch, Leningrad, main variation30040.3%54.5%
C78Ruy Lopez, 5.O-O105646.3%54.5%
A10English, Adorjan defence36838.3%54.5%
D35QGD, exchange, Saemisch variation26847.0%54.5%
B22Sicilian, Alapin's variation (2.c3)552043.6%54.5%
E94King's Indian, orthodox variation95536.6%54.5%
C11French, Steinitz variation92238.8%54.4%
D84Gruenfeld, Gruenfeld gambit accepted4551.1%54.4%
A80Dutch174435.4%54.4%
A30English, symmetrical variation277039.5%54.4%
A33English, symmetrical variation140048.4%54.4%
B80Sicilian, Scheveningen variation118630.9%54.4%
E10Blumenfeld counter-gambit accepted11339.8%54.4%
C11French defence14740.8%54.4%
B12Caro-Kann, Tartakower (fantasy) variation54337.4%54.4%
D02Queen's pawn game, Krause variation34044.7%54.4%
E41Nimzo-Indian, 4.e3 c564643.8%54.4%
A41Old Indian defence62731.6%54.4%
D17QGD Slav, Czech defence34248.0%54.4%
A07Reti, King's Indian attack, Keres variation64134.8%54.4%
B32Sicilian, Nimzovich variation2339.1%54.3%
C27Vienna game9245.7%54.3%
D80Gruenfeld, Stockholm variation65742.9%54.3%
D30QGD, Capablanca-Duras variation31245.2%54.3%
E34Nimzo-Indian, classical, Noa variation71752.6%54.3%
B72Sicilian, dragon, 6.Be38134.6%54.3%
D67QGD, Orthodox defence, Bd3 line, Alekhine variation3557.1%54.3%
D53QGD, 4.Bg5 Be791145.3%54.3%
B18Caro-Kann, classical variation142945.0%54.3%
D87Gruenfeld, exchange, Spassky variation46942.0%54.3%
A04Reti opening693638.0%54.3%
D77Neo-Gruenfeld, 6.O-O64646.3%54.3%
B44Sicilian, Szen (`anti-Taimanov') variation76439.1%54.3%
B42Sicilian, Kan, Polugaievsky variation123536.1%54.3%
D12QGD Slav, 4.e3 Bf5281440.0%54.2%
C67Ruy Lopez, Berlin defence, open variation338346.7%54.2%
D79Neo-Gruenfeld, 6.O-O, main line44848.7%54.2%
A33English, symmetrical, Geller variation57838.9%54.2%
C57Two knights defence, Fegatello attack5927.1%54.2%
A41Queen's Pawn183035.7%54.2%
A13English opening, Agincourt variation114640.1%54.2%
D32QGD, Tarrasch defence28546.7%54.2%
C02French, advance, Euwe variation123635.9%54.2%
A22English, Carls' Bremen system33339.9%54.2%
A14English, Neo-Catalan declined76243.6%54.2%
A19English, Mikenas-Carls, Sicilian variation32242.5%54.2%
C45Scotch, Mieses variation131341.2%54.2%
E12Queen's Indian, Petrosian system608642.8%54.2%
C14French, classical, Alapin variation8446.4%54.2%
C95Ruy Lopez, closed, Breyer, Gligoric variation4845.8%54.2%
C42Petrov, classical attack, Berger variation1275.0%54.2%
A25English, closed, Hort variation3636.1%54.2%
C79Ruy Lopez, Steinitz defence deferred, Rubinstein variation1241.7%54.2%
D50QGD, Semi-Tarrasch, Primitive Pillsbury variation1241.7%54.2%
B47Sicilian, Taimanov (Bastrikov) variation359441.4%54.2%
E17Queen's Indian, Opovcensky variation61438.3%54.2%
A80Dutch, Krejcik gambit26534.3%54.2%
B40Sicilian defence442539.1%54.1%
D45QGD semi-Slav, 5...Nd751338.4%54.1%
A34English, symmetrical variation88139.2%54.1%
D35QGD, exchange, positional line89140.7%54.0%
A28English, four knights, Nimzovich variation45834.3%54.0%
B86Sicilian, Sozin attack14940.9%54.0%
C26Vienna game23645.3%54.0%
D25QGA, 4.e38736.8%54.0%
A80Dutch, 2.Bg5 variation77133.1%54.0%
C31KGD, Falkbeer counter-gambit2544.0%54.0%
B91Sicilian, Najdorf, Zagreb (fianchetto) variation60038.0%54.0%
B85Sicilian, Scheveningen, classical, Maroczy system2536.0%54.0%
D46QGD semi-Slav, Chigorin defence41644.5%54.0%
B64Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f425338.3%54.0%
D45QGD semi-Slav, accelerated Meran (Alekhine variation)179744.0%54.0%
E42Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)53344.1%53.9%
C88Ruy Lopez, closed, anti-Marshall 8.a4146339.5%53.9%
C24Bishop's opening, Berlin defence91741.8%53.9%
A11English, Caro-Kann defensive system118640.2%53.9%
D10QGD Slav defence353741.0%53.9%
E81King's Indian, Saemisch, Byrne variation7740.3%53.9%
D36QGD, exchange, positional line, 6.Qc221942.0%53.9%
C46Three knights game11637.1%53.9%
C91Ruy Lopez, closed, Bogolyubov variation369943.0%53.9%
E21Nimzo-Indian, three knights variation213541.3%53.9%
A45Queen's pawn game179239.2%53.9%
C17French, Winawer, advance, Russian variation5238.5%53.8%
B88Sicilian, Sozin, Fischer variation1346.2%53.8%
D51QGD, 4.Bg5 Nbd76540.0%53.8%
B96Sicilian, Najdorf, Polugayevsky variation9137.4%53.8%
B25Sicilian, closed, 6.f4 e5 (Botvinnik)2646.2%53.8%
C47Four knights, Scotch, 4...exd445649.8%53.8%
B33Sicilian defence40434.9%53.8%
E06Catalan, closed, 5.Nf3278148.5%53.8%
C77Ruy Lopez, Wormald (Alapin) attack30141.9%53.8%
E12Queen's Indian defence62041.8%53.8%
A25English, closed system71434.5%53.8%
C47Four knights, Belgrade gambit10647.2%53.8%
C73Ruy Lopez, modern Steinitz defence, Richter variation13351.9%53.8%
B83Sicilian, modern Scheveningen, main line49344.2%53.8%
E43Nimzo-Indian, Fischer variation54836.7%53.7%
C74Ruy Lopez, Siesta, Kopayev variation10730.8%53.7%
A47Queen's Indian, Marienbad system6735.8%53.7%
B14Caro-Kann, Panov-Botvinnik attack, 5...g629549.8%53.7%
C25Vienna gambit2725.9%53.7%
C13French, Albin-Alekhine-Chatard attack23131.2%53.7%
B17Caro-Kann, Steinitz variation356542.8%53.7%
A07Reti, King's Indian attack (Barcza system)399341.4%53.7%
A35English, symmetrical, four knights system193243.7%53.6%
E32Nimzo-Indian, classical variation588142.2%53.6%
C01French, exchange variation123744.0%53.6%
D82Gruenfeld, 4.Bf450345.1%53.6%
E77King's Indian, Four pawns attack, 6.Be21450.0%53.6%
C44Scotch, Lolli variation1435.7%53.6%
C66Ruy Lopez, closed Berlin defence, Bernstein variation1435.7%53.6%
D44QGD semi-Slav, Botvinnik system (anti-Meran)7038.6%53.6%
E15Queen's Indian, 4.g3 Bb722539.6%53.6%
A17English opening21137.9%53.6%
D47QGD semi-Slav, Meran, Wade variation679239.4%53.5%
A05Reti opening300737.2%53.5%
D55QGD, Petrosian variation35352.1%53.5%
E14Queen's Indian, 4.e3160039.8%53.5%
D56QGD, Lasker defence29845.3%53.5%
C78Ruy Lopez, Moeller defence54042.2%53.5%
C07French, Tarrasch, open variation343347.7%53.5%
E86King's Indian, Saemisch, orthodox, 7.Nge2 c632828.4%53.5%
A17English, Nimzo-English opening161839.6%53.5%
E20Nimzo-Indian, Kmoch variation64638.5%53.5%
B90Sicilian, Najdorf244636.6%53.5%
D10QGD Slav, Winawer counter-gambit13031.5%53.5%
A15English opening976642.7%53.5%
C28Vienna game33541.8%53.4%
D16QGD Slav, Soultanbeieff variation37949.3%53.4%
B99Sicilian, Najdorf, 7...Be7 main line56929.2%53.4%
E76King's Indian, Four pawns attack, dynamic line14635.6%53.4%
A05Reti, King's Indian attack109540.5%53.4%
C26Vienna, Paulsen-Mieses variation38041.6%53.4%
C45Scotch game223542.6%53.4%
D05Queen's pawn game, Rubinstein (Colle-Zukertort) variation22239.2%53.4%
A48King's Indian, London system94839.2%53.4%
A06Reti opening56437.2%53.4%
D45QGD semi-Slav, Stoltz variation1123043.5%53.4%
E20Nimzo-Indian, Romanishin-Kasparov (Steiner) system37346.1%53.4%
D70Neo-Gruenfeld (Kemeri) defence3040.0%53.3%
D69QGD, Orthodox defence, classical, 13.de1553.3%53.3%
C41Philidor, Nimzovich (Jaenisch) variation1540.0%53.3%
E67King's Indian, fianchetto with ...Nd77537.3%53.3%
A21English, Troeger defence12030.0%53.3%
C43Petrov, modern attack, Symmetrical variation220745.1%53.3%
B56Sicilian143839.7%53.3%
E04Catalan, open, 5.Nf3396643.5%53.3%
D33QGD, Tarrasch, Prague variation6131.1%53.3%
A07Reti, King's Indian attack, Pachman system10737.4%53.3%
C57Two knights defence, Wilkes Barre (Traxler) variation4637.0%53.3%
E92King's Indian, Petrosian system, Stein variation52332.7%53.3%
B90Sicilian, Najdorf, Byrne (English) attack1837435.2%53.2%
A07Reti, King's Indian attack211242.4%53.2%
E12Queen's Indian, 4.Nc3432139.9%53.2%
E17Queen's Indian, anti-Queen's Indian system26739.0%53.2%
E59Nimzo-Indian, 4.e3, main line72443.6%53.2%
D51QGD, 5...c66349.2%53.2%
E52Nimzo-Indian, 4.e3, main line with ...b642639.2%53.2%
E61King's Indian, Smyslov system7938.0%53.2%
E25Nimzo-Indian, Saemisch, Keres variation26946.1%53.2%
C07French, Tarrasch, Eliskases variation11146.8%53.2%
A27English, three knights system46134.7%53.1%
B92Sicilian, Najdorf, Opovcensky variation482540.1%53.1%
C23Bishop's opening, Classical variation4839.6%53.1%
B27Sicilian defence1631.3%53.1%
A12English, Caro-Kann defensive system, Bogolyubov variation8048.8%53.1%
B13Caro-Kann, Panov-Botvinnik attack93447.8%53.1%
C70Ruy Lopez, Cozio defence deferred25845.0%53.1%
C02French, advance, Steinitz variation34033.2%53.1%
A16English opening121335.9%53.1%
B94Sicilian, Najdorf, 6.Bg568935.8%53.0%
C50Giuoco Pianissimo144438.5%53.0%
C67Ruy Lopez, open Berlin defence, 5...Be76633.3%53.0%
A16English, Anglo-Gruenfeld defense21541.9%53.0%
B10Caro-Kann defence194435.8%53.0%
B50Sicilian325940.9%53.0%
A36English, ultra-symmetrical variation116638.4%53.0%
B23Sicilian, Grand Prix attack, Schofman variation15040.7%53.0%
A09Reti opening50040.4%53.0%
D50QGD, 4.Bg56743.3%53.0%
E58Nimzo-Indian, 4.e3, main line with 8...Bxc3139544.7%53.0%
D31QGD, semi-Slav, Marshall gambit65643.1%53.0%
D02Queen's bishop game111439.7%53.0%
C44Ponziani, Jaenisch counter-attack200046.2%53.0%
A10English, Anglo-Dutch defense61133.2%52.9%
A98Dutch, Ilyin-Genevsky variation with Qc23429.4%52.9%
D01Richter-Veresov attack, Richter variation1723.5%52.9%
A00Mieses opening11930.3%52.9%
D63QGD, Orthodox defence, Swiss, Karlsbad variation15341.8%52.9%
C80Ruy Lopez, open, 7.Bb348340.8%52.9%
A83Dutch, Staunton gambit, Chigorin variation6933.3%52.9%
C69Ruy Lopez, exchange variation, 5.O-O60641.7%52.9%
A13English, Neo-Catalan67640.7%52.9%
B35Sicilian, accelerated fianchetto, modern variation with Bc4185643.2%52.9%
A01Nimzovich-Larsen attack57736.7%52.9%
C48Four knights, Rubinstein counter-gambit, exchange variation14064.3%52.9%
C11French, Burn variation485244.2%52.9%
B19Caro-Kann, classical, 7...Nd736850.8%52.9%
D43QGD semi-Slav627541.4%52.8%
E00Neo-Indian (Seirawan) attack15931.4%52.8%
B07Pirc, Sveshnikov system28434.5%52.8%
C50Giuoco Pianissimo, Canal variation17843.8%52.8%
A07Reti, King's Indian attack, Yugoslav variation158740.3%52.8%
A28English, four knights, Romanishin variation42850.5%52.8%
B83Sicilian, Scheveningen, 6.Be251939.7%52.8%
D30QGD, Hastings variation48547.0%52.8%
D31QGD, Charousek (Petrosian) variation131245.5%52.8%
D05Queen's pawn game, Zukertort variation1861.1%52.8%
D27QGA, classical, Geller variation7255.6%52.8%
C48Four knights, Rubinstein counter-gambit98039.0%52.8%
D37QGD, 4.Nf3502746.5%52.7%
C60Ruy Lopez, fianchetto (Smyslov/Barnes) defence23840.8%52.7%
D47QGD semi-Slav, 7.Bc45536.4%52.7%
C53Giuoco Piano184537.9%52.7%
D48QGD semi-Slav, Meran, old main line11135.1%52.7%
D02Queen's pawn game455341.1%52.7%
D14QGD Slav, exchange, Trifunovic variation20449.5%52.7%
A38English, symmetrical, main line with d313048.5%52.7%
C42Petrov, Cozio (Lasker) attack48848.8%52.7%
D23QGA, Mannheim variation28345.9%52.7%
E12Queen's Indian, Miles variation127044.2%52.6%
E84King's Indian, Saemisch, Panno main line38037.4%52.6%
C55Two knights, Max Lange attack, Schlechter variation1942.1%52.6%
A34English, symmetrical, Rubinstein system36339.1%52.6%
D26QGA, classical variation61951.5%52.6%
C88Ruy Lopez, closed120341.5%52.6%
D30QGD, Vienna variation55354.1%52.5%
B01Scandinavian gambit13941.7%52.5%
B21Sicilian, Grand Prix attack141835.8%52.5%
A21English, Kramnik-Shirov counterattack175041.0%52.5%
B20Sicilian, Keres variation (2.Ne2)56440.8%52.5%
B13Caro-Kann, exchange, Rubinstein variation12135.5%52.5%
A09Reti accepted22340.4%52.5%
B34Sicilian, accelerated fianchetto, modern variation30836.0%52.4%
D38QGD, Ragozin variation356446.2%52.4%
C88Ruy Lopez, closed, 7...O-O274040.4%52.4%
E13Queen's Indian, 4.Nc3, main line20835.6%52.4%
D31QGD, semi-Slav, Noteboom variation22939.3%52.4%
A26English, Botvinnik system29237.7%52.4%
C78Ruy Lopez, ...b5 & ...d64233.3%52.4%
D21QGA, Alekhine defense, Borisenko-Furman variation2128.6%52.4%
C54Giuoco Piano16853.6%52.4%
C64Ruy Lopez, classical (Cordel) defence18942.3%52.4%
A91Dutch defence8433.3%52.4%
E36Nimzo-Indian, classical, Noa variation, 5.a325445.7%52.4%
C50Giuoco Piano42441.5%52.4%
A00Benko's opening574141.5%52.4%
A05Reti, King's Indian attack, Spassky's variation27741.9%52.3%
A46Queen's pawn, Yusupov-Rubinstein system68240.8%52.3%
C00French, Pelikan variation6435.9%52.3%
D41QGD, Semi-Tarrasch with e312846.9%52.3%
D00Levitsky attack (Queen's bishop attack)171037.0%52.3%
A47Queen's Indian defence44038.6%52.3%
B10Caro-Kann, anti-anti-Caro-Kann defence126648.6%52.3%
C92Ruy Lopez, closed, 9.h338242.7%52.2%
D57QGD, Lasker defence, main line4555.6%52.2%
C44Scotch gambit, Dubois-Reti defence27040.0%52.2%
A81Dutch defence, Blackburne variation4528.9%52.2%
E65King's Indian, fianchetto, Yugoslav, 7.O-O15950.3%52.2%
A25English, closed, 5.Rb140939.9%52.2%
E28Nimzo-Indian, Saemisch variation9125.3%52.2%
A08Reti, King's Indian attack50341.9%52.2%
B62Sicilian, Richter-Rauzer, Margate (Alekhine) variation4634.8%52.2%
D05Queen's pawn game50936.7%52.2%
B10Caro-Kann, closed (Breyer) variation58438.5%52.1%
B44Sicilian defence30443.1%52.1%
A26English, closed system28537.5%52.1%
B59Sicilian, Boleslavsky variation, 7.Nb311947.1%52.1%
B12Caro-Kann, advance, Short variation4833.3%52.1%
B72Sicilian, dragon, classical, Grigoriev variation2445.8%52.1%
B76Sicilian, dragon, Yugoslav attack, 7...O-O29134.7%52.1%
A45Trompovsky attack (Ruth, Opovcensky opening)332935.6%52.1%
D00Queen's pawn, Chigorin variation29334.5%52.0%
D22QGA, Haberditz variation9857.1%52.0%
D58QGD, Tartakower (Makagonov-Bondarevsky) system486746.3%52.0%
C55Two knights defence, Perreux variation2548.0%52.0%
D93Gruenfeld with Bf4 e325049.6%52.0%
A36English, symmetrical, Botvinnik system15133.8%52.0%
B13Caro-Kann, exchange variation73140.2%52.0%
B23Sicilian, closed, 2...Nc6157341.4%52.0%
A28English, four knights, 4.e393936.2%52.0%
A25English, Sicilian reversed66633.6%52.0%
A35English, symmetrical variation20834.6%51.9%
B85Sicilian, Scheveningen, classical13040.8%51.9%
D30QGD72947.9%51.9%
C88Ruy Lopez, Trajkovic counter-attack62640.9%51.9%
B12Caro-Kann defence18436.4%51.9%
E01Catalan, closed42248.3%51.9%
B73Sicilian, dragon, classical, 8.O-O34444.5%51.9%
B72Sicilian, dragon, classical attack8038.8%51.9%
B80Sicilian, Scheveningen, English variation13732.1%51.8%
C90Ruy Lopez, closed, Pilnik variation79935.5%51.8%
A29English, four knights, kingside fianchetto583941.0%51.8%
B84Sicilian, Scheveningen (Paulsen), classical variation350538.6%51.8%
E25Nimzo-Indian, Saemisch variation11341.6%51.8%
D55QGD, Neo-orthodox variation, 7.Bxf631145.7%51.8%
E47Nimzo-Indian, 4.e3 O-O, 5.Bd348647.1%51.7%
B70Sicilian, dragon variation66241.2%51.7%
B57Sicilian, Sozin, Benko variation125239.1%51.7%
A13English opening177636.7%51.7%
C76Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation29735.4%51.7%
A28English, Nenarokov variation12040.0%51.7%
B15Caro-Kann defence21132.2%51.7%
C22Centre game, Paulsen attack18137.0%51.7%
A46Queen's pawn, Torre attack117936.5%51.7%
B62Sicilian, Richter-Rauzer, Keres variation6131.1%51.6%
C50Giuoco Pianissimo, Italian four knights variation35038.6%51.6%
D86Gruenfeld, exchange, Simagin's improved variation9739.2%51.5%
C90Ruy Lopez, closed (with ...d6)116936.5%51.5%
C45Scotch, Potter variation49339.8%51.5%
D53QGD, 4.Bg5 Be7, 5.e3 O-O3348.5%51.5%
C84Ruy Lopez, closed defence121340.5%51.5%
B23Sicilian, closed273338.4%51.5%
B80Sicilian, Scheveningen, fianchetto variation17133.9%51.5%
D14QGD Slav, exchange variation, 6.Bf4 Bf565049.4%51.5%
A00Van't Kruijs opening44540.0%51.5%
C42Petrov's defence24044.6%51.5%
C42Petrov, Paulsen attack13939.6%51.4%
C70Ruy Lopez3545.7%51.4%
A13English, Wimpey system10642.5%51.4%
B66Sicilian, Richter-Rauzer, Rauzer attack, 7...a6559233.7%51.4%
A00Anderssen's opening39040.8%51.4%
B55Sicilian, Prins variation, Venice attack3641.7%51.4%
B90Sicilian, Najdorf, Adams attack101237.7%51.4%
E31Nimzo-Indian, Leningrad, main line18431.0%51.4%
C89Ruy Lopez, Marshall, main line, 14...Qh340951.3%51.3%
A48King's Indian, East Indian defence74438.7%51.3%
C68Ruy Lopez, exchange variation7541.3%51.3%
B23Sicilian, closed, Korchnoi variation11354.9%51.3%
E23Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc63839.5%51.3%
C00French, Reti (Spielmann) variation15441.6%51.3%
C44King's pawn game7735.1%51.3%
C00French, Two knights variation19435.6%51.3%
B96Sicilian, Najdorf, 7.f4117133.9%51.3%
B89Sicilian, Velimirovic attack70333.4%51.3%
A12English, London defensive system12241.8%51.2%
C68Ruy Lopez, exchange, Keres variation8253.7%51.2%
D97Gruenfeld, Russian, Alekhine (Hungarian) variation152244.3%51.2%
E46Nimzo-Indian, Reshevsky variation83644.3%51.2%
C77Ruy Lopez, Anderssen variation71141.4%51.2%
D61QGD, Orthodox defence, Rubinstein variation21144.5%51.2%
B87Sicilian, Sozin with ...a6 and ...b573936.5%51.2%
A28English, four knights, Marini variation75339.6%51.1%
C00French defence, Steiner variation68643.3%51.1%
B80Sicilian, Scheveningen, Vitolins variation4746.8%51.1%
D39QGD, Ragozin, Vienna variation151250.9%51.1%
C17French, Winawer, advance, Bogolyubov variation33439.2%51.0%
A28English, four knights system33844.1%51.0%
E32Nimzo-Indian, classical, Adorjan gambit9744.3%51.0%
A40Polish defence5046.0%51.0%
E85King's Indian, Saemisch, orthodox variation5034.0%51.0%
E20Nimzo-Indian defence10150.5%51.0%
C49Four knights, symmetrical, Maroczy system5147.1%51.0%
C00French, King's Indian attack196537.8%51.0%
C50Giuoco Piano, four knights variation5236.5%51.0%
D49QGD semi-Slav, Meran, Blumenfeld variation15945.3%50.9%
B33Sicilian, Sveshnikov variation130238.6%50.9%
C65Ruy Lopez, Berlin defence251339.4%50.9%
B44Sicilian, Szen, hedgehog variation22639.8%50.9%
B25Sicilian, closed, 6.f439640.7%50.9%
D00Queen's pawn, Mason variation73940.6%50.9%
E07Catalan, closed, 6...Nbd75738.6%50.9%
C48Four knights, Rubinstein counter-gambit, Henneberger variation5940.7%50.8%
E08Catalan, closed, Qc2 & b318040.6%50.8%
D24QGA, 4.Nc318841.0%50.8%
C00French, Chigorin variation69231.6%50.8%
D95Gruenfeld, Botvinnik variation6442.2%50.8%
C49Four knights, symmetrical, Metger unpin32136.8%50.8%
A22English opening68736.8%50.7%
A37English, symmetrical, Botvinnik system reversed68137.3%50.7%
E41Nimzo-Indian, e3, Huebner variation45733.5%50.7%
E50Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d515738.9%50.6%
B20Sicilian defence189035.9%50.6%
D03Torre attack (Tartakower variation)63239.6%50.6%
B93Sicilian, Najdorf, 6.f4152239.9%50.6%
E92King's Indian, Petrosian system8129.6%50.6%
C48Four knights, Spanish, classical defence16445.1%50.6%
C69Ruy Lopez, exchange variation, Alapin gambit26741.2%50.6%
C51Evans gambit, Stone-Ware variation19235.4%50.5%
E35Nimzo-Indian, classical, Noa variation, 5.cd ed49444.3%50.5%
E22Nimzo-Indian, Spielmann variation10043.0%50.5%
A01Nimzovich-Larsen attack, modern variation274640.2%50.5%
A41Robatsch defence, Rossolimo variation11136.0%50.5%
A83Dutch, Staunton gambit, Staunton's line11536.5%50.4%
A22English, Bremen, reverse dragon61940.7%50.4%
E92King's Indian, Andersson variation25453.5%50.4%
C81Ruy Lopez, open, Howell attack13151.9%50.4%
A02Bird, From gambit14834.5%50.3%
A01Nimzovich-Larsen attack, English variation15536.1%50.3%
B89Sicilian, Sozin, 7.Be397236.6%50.3%
C46Four knights game57943.2%50.3%
D04Queen's pawn game65541.5%50.2%
C60Ruy Lopez, Cozio defence23242.7%50.2%
A01Nimzovich-Larsen attack, Indian variation23931.8%50.2%
A37English, symmetrical variation88640.6%50.1%
B10Caro-Kann, Hillbilly attack20.0%50.0%
C43Petrov, modern attack, Steinitz variation1100.0%50.0%
C65Ruy Lopez, Berlin defence, Anderssen variation1100.0%50.0%
E21Nimzo-Indian, three knights, Korchnoi variation40.0%50.0%
B13Caro-Kann, Panov-Botvinnik, Czerniak variation2630.8%50.0%
D31QGD, Janowski variation10945.0%50.0%
A59Benko gambit, 7.e4633.3%50.0%
C10French, Rubinstein, Capablanca line771.4%50.0%
C42Petrov, Italian variation6327.0%50.0%
B25Sicilian, closed, 6.Ne2 e5 (Botvinnik)3729.7%50.0%
C21Halasz gambit450.0%50.0%
C11French, Henneberger variation1338.5%50.0%
C48Four knights, Rubinstein counter-gambit, 5.Be22100.0%50.0%
B15Caro-Kann, Alekhine gambit2339.1%50.0%
C01French, exchange, Bogolyubov variation333.3%50.0%
C66Ruy Lopez, closed Berlin defence, Chigorin variation40.0%50.0%
A04Reti, Wade defence20.0%50.0%
C33KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit333.3%50.0%
B05Alekhine's defence, modern, Vitolins attack450.0%50.0%
D56QGD, Lasker defence, Teichmann variation9051.1%50.0%
C69Ruy Lopez, exchange, Bronstein variation43932.1%50.0%
E93King's Indian, Petrosian system, main line7634.2%50.0%
C33KGA, bishop's gambit, Paulsen attack450.0%50.0%
A38English, symmetrical, main line with b31100.0%50.0%
C55Two knights defence5141.2%50.0%
C33KGA, Breyer gambit333.3%50.0%
C49Four knights, Gunsberg counter-attack1100.0%50.0%
A56Vulture defence1100.0%50.0%
C78Ruy Lopez, Wing attack40.0%50.0%
C45Scotch, Ghulam Kassim variation2100.0%50.0%
D63QGD, Orthodox defence, Capablanca variation1100.0%50.0%
C62Ruy Lopez, old Steinitz defence, Nimzovich attack520.0%50.0%
D50QGD, Canal (Venice) variation20.0%50.0%
C22Centre game, Charousek variation450.0%50.0%
C12French, MacCutcheon variation10842.6%50.0%
C12French, MacCutcheon, Bogolyubov variation1100.0%50.0%
A86Dutch, Hort-Antoshin system2100.0%50.0%
C51Evans gambit declined, Showalter variation2441.7%50.0%
C33KGA, bishop's gambit, Gifford variation333.3%50.0%
D99Gruenfeld defence, Smyslov, Yugoslav variation1127.3%50.0%
D60QGD, Orthodox defence, Botvinnik variation6532.3%50.0%
C45Scotch, Pulling counter-attack20.0%50.0%
D23Queen's gambit accepted3339.4%50.0%
A25English, closed, 5.Rb1 Taimanov variation20.0%50.0%
D35QGD, 3...Nf67941.8%50.0%
C32KGD, Falkbeer, Charousek gambit2100.0%50.0%
D52QGD, Cambridge Springs defence, 7.cd3633.3%50.0%
C02French, advance, Nimzovich variation560.0%50.0%
C57Two knights defence, Fegatello attack, Leonhardt variation825.0%50.0%
C34KGA, Gianutio counter-gambit2100.0%50.0%
B12Caro-Masi defence1100.0%50.0%
B09Pirc, Austrian attack, Ljubojevic variation1442.9%50.0%
B05Alekhine's defence, modern, Alekhine variation742.9%50.0%
C71Ruy Lopez, modern Steinitz defence, Three knights variation1741.2%50.0%
C55Giuoco piano20.0%50.0%
A95Dutch, stonewall: Chekhover variation1100.0%50.0%
D44QGD semi-Slav, anti-Meran, Alatortsev system1100.0%50.0%
C68Ruy Lopez, exchange, Romanovsky variation1233.3%50.0%
E87King's Indian, Saemisch, orthodox, Bronstein variation1100.0%50.0%
D51QGD, Alekhine variation40.0%50.0%
C65Ruy Lopez, Berlin defence, Duras variation1338.5%50.0%
D32QGD, Tarrasch defence, Marshall gambit633.3%50.0%
C37KGA, Muzio gambit, From defence1100.0%50.0%
B00Carr's defence450.0%50.0%
E20Nimzo-Indian, Mikenas attack666.7%50.0%
C11French, Steinitz, Bradford attack1100.0%50.0%
C30KGD, classical, Marshall attack3100.0%50.0%
C27Vienna, Alekhine variation1338.5%50.0%
C49Four knights, symmetrical, Blake variation2100.0%50.0%
A00Lasker simul special333.3%50.0%
C50Rousseau gambit333.3%50.0%
A07Reti, King's Indian attack (with ...c5)16341.1%50.0%
C48Four knights, Bardeleben variation850.0%50.0%
C41Philidor, Lopez counter-gambit20.0%50.0%
C53Giuoco Piano, Mestel variation1100.0%50.0%
B03Alekhine's defence, four pawns attack, Planinc variation333.3%50.0%
C31KGD, Falkbeer, Milner-Barry variation20.0%50.0%
C21Danish gambit, Schlechter defence714.3%50.0%
C15French, Winawer, Alekhine gambit20.0%50.0%
B00KP, Colorado counter20.0%50.0%
C49Four knights, symmetrical, Tarrasch variation1650.0%50.0%
C89Ruy Lopez, Marshall, Kevitz variation2100.0%50.0%
B05Alekhine's defence, modern, Panov variation911.1%50.0%
C33KGA, bishop's gambit, Ruy Lopez defence1442.9%50.0%
C32KGD, Falkbeer, Reti variation450.0%50.0%
C37KGA, Cochrane gambit333.3%50.0%
D41QGD, Semi-Tarrasch, Kmoch variation875.0%50.0%
D55QGD, Neo-orthodox variation633.3%50.0%
D50QGD, Semi-Tarrasch, Krause variation1100.0%50.0%
C30KGD, classical, Reti variation1100.0%50.0%
C61Ruy Lopez, Bird's defence, Paulsen variation333.3%50.0%
C41Philidor, Hanham, Delmar variation2100.0%50.0%
E77King's Indian, Four pawns attack, Florentine gambit2100.0%50.0%
A52Budapest, Alekhine variation, Balogh gambit1100.0%50.0%
C40King's knight opening20.0%50.0%
C77Ruy Lopez, Wormald attack, Gruenfeld variation2100.0%50.0%
C42Petrov, Damiano variation2441.7%50.0%
C33KGA, bishop's gambit, Maurian defence666.7%50.0%
C33KGA, bishop's gambit, Cozio (Morphy) defence2100.0%50.0%
A00Novosibirsk opening2133.3%50.0%
D33QGD, Tarrasch, Schlechter-Rubinstein system1338.5%50.0%
C70Ruy Lopez, Graz variation6100.0%50.0%
C45Scotch, Blackburne attack1637.5%50.0%
C20KP, Napoleon's opening633.3%50.0%
C30KGD, classical, Svenonius variation1100.0%50.0%
E53Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd74161.0%50.0%
B37Sicilian, accelerated fianchetto, Simagin variation2100.0%50.0%
E14Queen's Indian, Averbakh variation20.0%50.0%
C64Ruy Lopez, classical defence, Zaitsev variation2100.0%50.0%
C80Ruy Lopez, open, Zukertort variation333.3%50.0%
C60Ruy Lopez, Lucena defence20.0%50.0%
C13French, classical, Anderssen-Richter variation825.0%50.0%
C44Scotch opening2100.0%50.0%
B71Sicilian, dragon, Levenfish; Flohr variation450.0%50.0%
C25Vienna game, Max Lange defence2142.9%50.0%
C15French, Winawer, Kondratiyev variation1100.0%50.0%
C37KGA, Salvio gambit, Anderssen counter-attack40.0%50.0%
C41Philidor, Nimzovich, Sozin variation742.9%50.0%
A01Nimzovich-Larsen attack, classical variation92936.2%49.9%
B90Sicilian, Najdorf, Lipnitzky attack88135.6%49.9%
B20Sicilian, Steinitz variation33444.0%49.9%
B52Sicilian, Canal-Sokolsky attack, 3...Bd7151542.8%49.8%
A00Saragossa opening28629.0%49.8%
B97Sicilian, Najdorf, Poisoned pawn variation106844.8%49.7%
A06Reti, Nimzovich-Larsen attack282341.1%49.7%
C50Hungarian defence15640.4%49.7%
A00Dunst (Sleipner, Heinrichsen) opening149335.8%49.6%
A04Reti, Pirc-Lisitsin gambit12129.8%49.6%
B26Sicilian, closed, 6.Be355632.9%49.6%
E46Nimzo-Indian, Simagin variation11139.6%49.5%
B23Sicilian, Grand Prix attack63535.7%49.5%
C44Ponziani, Caro variation21042.9%49.5%
B77Sicilian, dragon, Yugoslav attack, 9.Bc410333.0%49.5%
B53Sicilian, Chekhover variation103042.1%49.5%
B95Sicilian, Najdorf, 6...e698738.8%49.5%
C00French, Schlechter variation17041.2%49.4%
A48King's Indian, Torre attack145038.9%49.4%
C46Four knights, Gunsberg variation7648.7%49.3%
C67Ruy Lopez, open Berlin defence, l'Hermet variation7556.0%49.3%
D44QGD semi-Slav, 5.Bg5 dc14243.7%49.3%
C23Bishop's opening, Philidor counter-attack14157.4%49.3%
D89Gruenfeld, Spassky variation, main line, 13.Bd37038.6%49.3%
A09Reti, advance variation68740.3%49.3%
C53Giuoco Piano, Bird's attack12931.8%49.2%
C49Four knights6454.7%49.2%
B84Sicilian, Scheveningen, classical, Nd7 system6334.9%49.2%
D00Queen's pawn, Mason variation, Steinitz counter-gambit35937.6%49.2%
A01Nimzovich-Larsen attack, symmetrical variation59740.4%49.2%
E62King's Indian, fianchetto variation5836.2%49.1%
A12English, Caro-Kann defensive system16738.3%49.1%
C43Petrov, modern attack, Trifunovic variation5345.3%49.1%
C58Two knights defence, Bogolyubov variation4932.7%49.0%
C59Two knights defence19037.9%48.9%
B10Caro-Kann, Goldman (Spielmann) variation4742.6%48.9%
B24Sicilian, closed37436.9%48.9%
C56Two knights defence13743.8%48.9%
D00Queen's pawn game44639.0%48.9%
C33KGA, bishop's gambit, Jaenisch variation8843.2%48.9%
B25Sicilian, closed21937.4%48.9%
D12QGD Slav, exchange variation8737.9%48.9%
D48QGD semi-Slav, Meran, 8...a6136149.7%48.8%
A02Bird's opening283736.3%48.8%
C49Four knights, symmetrical, Pillsbury variation4259.5%48.8%
B72Sicilian, dragon, classical, Amsterdam variation4124.4%48.8%
B02Alekhine's defence, Saemisch attack24538.0%48.8%
E48Nimzo-Indian, 4.e3 O-O, 5.Bd3 d540841.2%48.8%
C88Ruy Lopez, closed, Balla variation3941.0%48.7%
C46Four knights, Italian variation15642.3%48.7%
E25Nimzo-Indian, Saemisch, Romanovsky variation7642.1%48.7%
D15QGD Slav accepted7642.1%48.7%
A22English, Bremen, Smyslov system140538.7%48.7%
A00Benko's opening, reversed Alekhine11342.5%48.7%
A24English, Bremen system with ...g614441.7%48.6%
C42Petrov, Kaufmann attack17848.9%48.6%
C85Ruy Lopez, Exchange variation doubly deferred (DERLD)108739.2%48.6%
A00Polish (Sokolsky) opening157738.5%48.5%
A45Blackmar-Diemer gambit15930.2%48.4%
A06Reti, old Indian attack8924.7%48.3%
C34KGA, Becker defence2941.4%48.3%
E30Nimzo-Indian, Leningrad variation54135.1%48.2%
A23English, Bremen system, Keres variation53140.7%48.2%
D91Gruenfeld, 5.Bg583739.1%48.1%
A00Polish, Outflank variation10444.2%48.1%
E24Nimzo-Indian, Saemisch variation15548.4%48.1%
A08Reti, King's Indian attack, French variation25137.8%48.0%
B18Caro-Kann, classical, Flohr variation7458.1%48.0%
B58Sicilian, Boleslavsky variation42736.8%47.9%
D29QGA, classical, 8...Bb730041.0%47.8%
A03Bird's opening290636.0%47.8%
C52Evans gambit26740.1%47.8%
D30QGD Slav, Semmering variation2231.8%47.7%
B83Sicilian, modern Scheveningen40542.5%47.7%
E51Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d512349.6%47.6%
B74Sicilian, dragon, classical, 9.Nb334652.3%47.5%
B21Sicilian, Smith-Morra gambit66741.1%47.5%
A18English, Mikenas-Carls, Kevitz variation2025.0%47.5%
B98Sicilian, Najdorf, Goteborg (Argentine) variation2045.0%47.5%
C74Ruy Lopez, modern Steinitz defence, siesta variation2045.0%47.5%
D01Richter-Veresov attack, Veresov variation2045.0%47.5%
C59Two knights defence, Steinitz variation31329.7%47.4%
C33KGA, bishop's gambit3836.8%47.4%
C51Evans gambit, normal variation1921.1%47.4%
C21Danish gambit10941.3%47.2%
E83King's Indian, Saemisch, 6...Nc65427.8%47.2%
C54Giuoco Piano, Moeller (Therkatz) attack3644.4%47.2%
C45Scotch, Schmidt variation58251.0%47.2%
E12Queen's Indian, 4.Nc3, Botvinnik variation3520.0%47.1%
A66Benoni, Mikenas variation1723.5%47.1%
A12English, Capablanca's variation6835.3%47.1%
C35KGA, Cunningham defence5139.2%47.1%
D54QGD, Anti-neo-orthodox variation3441.2%47.1%
D59QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd518048.3%46.9%
A00Battambang opening1631.3%46.9%
C44Ponziani, Romanishin variation1631.3%46.9%
C45Scotch, Tartakower variation1540.0%46.7%
D94Gruenfeld, Makogonov variation7548.0%46.7%
B58Sicilian, classical20145.3%46.5%
B13Caro-Kann, Panov-Botvinnik, Herzog defence1435.7%46.4%
B02Alekhine's defence, Spielmann variation1435.7%46.4%
D64QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation1421.4%46.4%
C84Ruy Lopez, closed, centre attack16748.5%46.4%
C02French, advance, Milner-Barry gambit9634.4%46.4%
A57Benko gambit, Zaitsev system6839.7%46.3%
C22Centre game39438.3%46.3%
B97Sicilian, Najdorf, 7...Qb6143833.0%46.2%
E30Nimzo-Indian, Leningrad, ...b5 gambit5328.3%46.2%
D64QGD, Orthodox defence, Rubinstein attack, Wolf variation1346.2%46.2%
A01Nimzovich-Larsen attack, Dutch variation1330.8%46.2%
C86Ruy Lopez, Worrall attack, solid line6432.8%46.1%
C29Vienna gambit16639.2%46.1%
A69Benoni, four pawns attack, main line7639.5%46.1%
D01Richter-Veresov attack39836.7%46.0%
C44Ponziani, Leonhardt variation8736.8%46.0%
D59QGD, Tartakower variation11044.5%45.9%
C77Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)6041.7%45.8%
D52QGD, Cambridge Springs defence3641.7%45.8%
C12French, MacCutcheon, Chigorin variation6038.3%45.8%
B03Alekhine's defence, four pawns attack, 6...Nc61225.0%45.8%
C44Inverted Hanham2433.3%45.8%
E11Bogo-Indian defence, Monticelli trap1241.7%45.8%
D49QGD semi-Slav, Meran, Sozin variation15344.4%45.8%
C44Ponziani, Steinitz variation43741.4%45.7%
D49QGD semi-Slav, Meran, Stahlberg variation8041.3%45.6%
C00French, Labourdonnais variation21432.2%45.6%
C80Ruy Lopez, open, 6.d44537.8%45.6%
E83King's Indian, Saemisch, Ruban variation1136.4%45.5%
C15French, Winawer, Alekhine gambit, Kan variation4445.5%45.5%
C80Ruy Lopez, open, Bernstein variation, Karpov gambit2245.5%45.5%
C13French, classical, Tartakower variation2236.4%45.5%
E53Nimzo-Indian, 4.e3, Keres variation8737.9%45.4%
A45Paleface attack3234.4%45.3%
C51Evans gambit declined, 5.a415941.5%45.3%
D12QGD Slav, Amsterdam variation2152.4%45.2%
A21English, Keres variation1030.0%45.0%
A92Dutch, stonewall with Nc31030.0%45.0%
C40Greco defence1030.0%45.0%
B29Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit3056.7%45.0%
D57QGD, Lasker defence, Bernstein variation1070.0%45.0%
D29QGA, classical, Smyslov variation4055.0%45.0%
D50QGD, Semi-Tarrasch1030.0%45.0%
C36KGA, Abbazia defence, modern variation18940.2%45.0%
C51Evans gambit, Cordel variation6952.2%44.9%
D67QGD, Orthodox defence, Bd3 line1957.9%44.7%
B22Sicilian, 2.c3, Heidenfeld variation5726.3%44.7%
C02French, advance, Nimzovich system9431.9%44.7%
C44Ponziani opening29335.8%44.5%
B20Sicilian, wing gambit, Carlsbad variation944.4%44.4%
C57Two knights defence, Ulvestad variation1866.7%44.4%
C34KGA, Fischer defence11630.2%44.4%
D49QGD semi-Slav, Meran, Rabinovich variation6025.0%44.2%
B45Sicilian, Taimanov, American attack1741.2%44.1%
A12English, New York (London) defensive system3452.9%44.1%
C52Evans gambit, Tartakower attack6844.1%44.1%
D31QGD, semi-Slav, Abrahams variation12535.2%44.0%
C39KGA, Kieseritsky, Kolisch defence7542.7%44.0%
C32KGD, Falkbeer, 5.de837.5%43.8%
C92Ruy Lopez, closed, Keres (9...a5) variation1650.0%43.8%
A80Dutch, Korchnoi attack837.5%43.8%
B73Sicilian, dragon, classical, Zollner gambit837.5%43.8%
C44Scotch, Goering gambit, Bardeleben variation837.5%43.8%
E29Nimzo-Indian, Saemisch, Capablanca variation2437.5%43.8%
C38KGA, Hanstein gambit837.5%43.8%
C20KP, Indian opening5633.9%43.8%
B01Scandinavian, Mieses-Kotrvc gambit862.5%43.8%
D45QGD semi-Slav, Rubinstein (anti-Meran) system1533.3%43.3%
C48Four knights, Rubinstein counter-gambit, Bogolyubov variation1546.7%43.3%
E24Nimzo-Indian, Saemisch, Botvinnik variation4436.4%43.2%
A00Clemenz (Mead's, Basman's or de Klerk's) opening2931.0%43.1%
C80Ruy Lopez, open, 8...Be6121638.0%43.0%
D00Queen's pawn, stonewall attack5736.8%43.0%
C67Ruy Lopez, open Berlin defence, Showalter variation1428.6%42.9%
C13French, classical2842.9%42.9%
A54Old Indian, Dus-Khotimirsky variation728.6%42.9%
E07Catalan, closed, Botvinnik variation6344.4%42.9%
C68Ruy Lopez, exchange, Alekhine variation1442.9%42.9%
C46Three knights, Schlechter variation1428.6%42.9%
A03Bird's opening, Lasker variation8428.6%42.9%
D00Blackmar-Diemer, Euwe defence2623.1%42.3%
A20English, Nimzovich, Flohr variation13538.5%42.2%
D52QGD, Cambridge Springs defence, Argentine variation1931.6%42.1%
A64Benoni, fianchetto, 11...Re810540.0%41.9%
A06Santasiere's folly10840.7%41.7%
A82Dutch, Staunton gambit, Tartakower variation616.7%41.7%
A00Durkin's attack650.0%41.7%
D22QGA, Alekhine defence, Alatortsev variation1250.0%41.7%
B20Sicilian, wing gambit5750.9%41.2%
E27Nimzo-Indian, Saemisch variation4546.7%41.1%
C39KGA, Kieseritsky, Berlin defence5639.3%41.1%
C40Latvian, Polerio variation2227.3%40.9%
C13French, classical, Anderssen variation1127.3%40.9%
A83Dutch, Staunton gambit, Lasker variation1145.5%40.9%
D15QGD Slav, Tolush-Geller gambit11828.8%40.7%
D00Blackmar gambit19840.9%40.7%
A06Tennison (Lemberg, Zukertort) gambit1656.3%40.6%
C46Three knights, Steinitz, Rosenthal variation540.0%40.0%
E23Nimzo-Indian, Spielmann, Karlsbad variation1540.0%40.0%
C39KGA, Kieseritsky, long whip (Stockwhip, classical) defence540.0%40.0%
C26Vienna, Mengarini variation1060.0%40.0%
B18Caro-Kann, classical, Maroczy attack1020.0%40.0%
C22Centre game, Hall variation540.0%40.0%
C56Two knights defence, Canal variation540.0%40.0%
C40Latvian gambit, 3.Bc4580.0%40.0%
C29Vienna gambit, Steinitz variation540.0%40.0%
E03Catalan, open, 5.Qa4 Nbd7, 6.Qxc47054.3%40.0%
D00Blackmar-Diemer gambit3020.0%40.0%
C80Ruy Lopez, open, Tartakower variation540.0%40.0%
C39KGA, Kieseritsky, Salvio (Rosenthal) defence4351.2%39.5%
A61Benoni, Uhlmann variation19222.4%39.3%
E03Catalan, open, Alekhine variation1421.4%39.3%
E17Queen's Indian, 5.Bg2 Be72828.6%39.3%
C53Giuoco Piano, Anderssen variation1855.6%38.9%
B15Caro-Kann, Rasa-Studier gambit911.1%38.9%
D90Gruenfeld, Schlechter variation1833.3%38.9%
D31QGD, semi-Slav, Koomen variation955.6%38.9%
D44QGD semi-Slav, Ekstrom variation2646.2%38.5%
C33KGA, bishop's gambit, Steinitz defence1741.2%38.2%
E92King's Indian, classical variation2536.0%38.0%
C24Bishop's opening, Urusov gambit4126.8%37.8%
A28English, Bradley Beach variation5221.2%37.5%
C57Two knights defence, Fritz, Gruber variation425.0%37.5%
C37KGA, Rosentreter gambit875.0%37.5%
C41Philidor, Hanham, Krause variation1258.3%37.5%
C39KGA, Kieseritsky, Paulsen defence825.0%37.5%
C21Danish gambit, Collijn defence475.0%37.5%
D89Gruenfeld, exchange, Sokolsky variation850.0%37.5%
A70Benoni, classical without 9.O-O425.0%37.5%
D48QGD semi-Slav, Meran205.0%37.5%
C14French, classical, Pollock variation714.3%35.7%
B50Sicilian, wing gambit deferred2123.8%35.7%
B02Alekhine's defence, Brooklyn defence714.3%35.7%
D44QGD semi-Slav, anti-Meran, Szabo variation2420.8%35.4%
C58Two knights defence, Colman variation1723.5%35.3%
C41Philidor, Nimzovich, Larobok variation4447.7%35.2%
C15French, Winawer, fingerslip variation3043.3%35.0%
C39KGA, Kieseritsky, Berlin defence, 6.Bc44030.0%35.0%
D31QGD, semi-Slav, Junge variation1030.0%35.0%
B57Sicilian, Magnus Smith trap1050.0%35.0%
A00Grob's attack18643.5%34.7%
A82Dutch, Staunton gambit10135.6%34.7%
B62Sicilian, Richter-Rauzer, Podvebrady variation1656.3%34.4%
D68QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)366.7%33.3%
C37KGA, Muzio gambit944.4%33.3%
A00Anti-Borg (Desprez) opening30.0%33.3%
C96Ruy Lopez, closed, Rossolimo defence30.0%33.3%
A00Grob, spike attack633.3%33.3%
C80Ruy Lopez, open, Berger variation366.7%33.3%
C46Four knights, Schultze-Mueller gambit30.0%33.3%
A51Budapest, Fajarowicz, Steiner variation366.7%33.3%
C34King's knight's gambit944.4%33.3%
C48Four knights, Spielmann variation366.7%33.3%
A00Amar (Paris) opening1844.4%33.3%
C37KGA, Blachly gambit2138.1%33.3%
C19French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation30.0%33.3%
D64QGD, Orthodox defence, Rubinstein attack, Karlsbad variation1844.4%33.3%
C20KP, Lopez opening1233.3%33.3%
A59Benko gambit, Ne2 variation30.0%33.3%
C44Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack666.7%33.3%
D00Queen's pawn, Anti-Veresov366.7%33.3%
A43Hawk (Habichd) defence366.7%33.3%
C65Ruy Lopez, Berlin defence, Mortimer variation1464.3%32.1%
C33KGA, Keres (Mason-Steinitz) gambit1450.0%32.1%
C42Petrov, Cochrane gambit6118.0%32.0%
C20KP, Patzer opening2227.3%31.8%
C57Two knights defence812.5%31.3%
C45Scotch, Blumenfeld attack1637.5%31.3%
C33KGA, bishop's gambit, Bledow variation2412.5%31.3%
C27Boden-Kieseritsky gambit4032.5%31.3%
C57Two knights defence, Fritz variation560.0%30.0%
C27Boden-Kieseritsky gambit, Lichtenhein defence560.0%30.0%
C39KGA, Kieseritsky, Rice gambit1723.5%29.4%
C38KGA, Philidor gambit128.3%29.2%
C52Evans gambit, Richardson attack1936.8%28.9%
B41Sicilian, Kan, Maroczy bind - Bronstein variation1936.8%28.9%
C42Petrov, classical attack, Krause variation757.1%28.6%
C33KGA, bishop's gambit, Bogolyubov variation728.6%28.6%
C38King's knight's gambit2339.1%28.3%
A84Dutch, Staunton gambit deferred955.6%27.8%
E60King's Indian, 3.g3, counterthrust variation911.1%27.8%
C00French, Steinitz attack911.1%27.8%
A00Grob, Fritz gambit5143.1%27.5%
A45Canard opening1136.4%27.3%
C80Ruy Lopez, open, Schlechter defence1931.6%26.3%
B07Pirc, Chinese variation250.0%25.0%
D19QGD Slav, Dutch, Saemisch variation250.0%25.0%
A83Dutch, Staunton gambit, Alekhine variation250.0%25.0%
B02Alekhine's defence, Krejcik variation250.0%25.0%
C33KGA, bishop's gambit, Boden defence250.0%25.0%
C52Evans gambit, Alapin-Steinitz variation250.0%25.0%
D21QGA, Ericson variation40.0%25.0%
C41Philidor, Paulsen attack250.0%25.0%
C23Bishop's opening, MacDonnell double gambit250.0%25.0%
C29Vienna gambit, Bardeleben variation650.0%25.0%
C24Bishop's opening, Ponziani gambit250.0%25.0%
C10French, Marshall variation250.0%25.0%
C84Ruy Lopez, closed, Basque gambit (North Spanish variation)250.0%25.0%
C52Evans gambit, Levenfish variation616.7%25.0%
C52Evans gambit, Lasker defence616.7%25.0%
C20KP, King's head opening250.0%25.0%
B00Corn stalk defence250.0%25.0%
C20KP, Mengarini's opening2040.0%25.0%
A03Mujannah opening450.0%25.0%
B02Alekhine's defence, Kmoch variation714.3%21.4%
C12French, MacCutcheon, advance variation1428.6%21.4%
B03Alekhine's defence, four pawns attack, Ilyin-Genevsky var.742.9%21.4%
C58Two knights defence, Yankovich variation1241.7%20.8%
D32QGD, Tarrasch defence, Tarrasch gambit540.0%20.0%
D50QGD, Been-Koomen variation540.0%20.0%
C88Ruy Lopez, closed, 7...d6, 8.d41833.3%16.7%
E57Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd333.3%16.7%
C37KGA, Quaade gambit633.3%16.7%
C14French, classical variation425.0%12.5%
C59Two knights defence, Goering variation425.0%12.5%
C51Evans gambit declined, Lange variation20.0%0.0%
A02Bird, From gambit, Lipke variation10.0%0.0%
C44Dresden opening20.0%0.0%
C25Vienna, Steinitz gambit10.0%0.0%
C81Ruy Lopez, open, Howell attack, Adam variation20.0%0.0%
C23Bishop's opening, Lisitsyn variation10.0%0.0%
C41Philidor, Steinitz variation20.0%0.0%
D26QGA, classical, Furman variation10.0%0.0%
C67Ruy Lopez, Berlin defence, Pillsbury variation10.0%0.0%
D80Gruenfeld, Lundin variation10.0%0.0%
C33KGA, bishop's gambit, classical defence10.0%0.0%
C54Giuoco Piano, Therkatz-Herzog variation10.0%0.0%
C48Four knights, Marshall variation20.0%0.0%
C33King's gambit accepted10.0%0.0%
C30KGD, classical counter-gambit10.0%0.0%
C44Ponziani counter-gambit, Cordel variation10.0%0.0%
C23Bishop's opening, Lopez gambit20.0%0.0%
A00Amar gambit10.0%0.0%
A83Dutch, Staunton gambit, Nimzovich variation20.0%0.0%
C39KGA, Allgaier, Thorold variation10.0%0.0%
C39KGA, Allgaier, Walker attack10.0%0.0%
C95Ruy Lopez, closed, Breyer, 10.d410.0%0.0%

Created in 2005-2013 by CCRL team
Last games added on November 18, 2017